Cutnell Johnson Physics (11th Edition)

Chapter 4

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If you are moving and suddenly apply brakes then ... more

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An object cannot be only stationary, it can move ... more

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A non-zero net external force does not act in case... more

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No ; There is no guarantee that the body will be ... more

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If the all forces on the object gets doubled, then... more

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Yes, this right that each experiences acceleration... more

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Mass of body never changes, whether you choose ... more

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Yes  ; Yes, object A weights twice as compared to ... more

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First of all, it is to be known that what is ... more

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Net Gravitational force is,  So basically ... more

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No ; According to Newton's second law . So force(... more

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The real weight of the suitcase is . So when the ... more

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When the elevator slows down, it means ... more

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The given coefficient of static friction is the ... more

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Yes, less force is required in pulling. ; In case ... more

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; It is given that, and Horizontal force is, Let... more

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Frictional force is directly proportional to the ... more

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When the rope is tied to the tree, force is ... more

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The forces point along the same line but in ... more

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a) A system is said to be in equilibrium only when... more

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The skydiver is in equilibrium in this given ... more

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No ; To prevent the box from accelerating downward... more

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When the person pulls his body in upward direction... more

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No  ; Newton's Second Law of motion states that ... more

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In Case A, the force applied by the left box on ... more

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A body remains in its state of motion until an ... more

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This is one of the possible cases because when the... more

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It is given that m = 27 kg and it is calculated in... more

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It is the case of the second law of motion, it ... more

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It is given that or .If the ratio of mp and mt is... more

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It is given that and . If the ratio  and (as ... more

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Because mass does not depend on gravity, its ... more

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The apparent weight is the force that the ... more

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Angle of force with the wall in Case C is greatest... more

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Normal force on Block A is . Therefore, the ... more

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Case C and case A are interchanged. so this is not... more

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In Case B tension at 3 points of the rope is such ... more

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It is not necessary that the object must be at ... more

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It is given that blocks are identical and both are... more

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; It is given that, Total mass of man + platform ... more

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93 N ; The acceleration of the plane can be ... more

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0.3088 m/s2 due west ; Consider east direction is ... more

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35365 N ; It is given that mass of the car and ... more

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; It is given that combined mass of person and ... more

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; It is given that mass of the projectile is .... more

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Here, the minus sign indicates that the force is ... more

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; It is given that the mass of the space probe is... more

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; Consider that the east direction is positive x-... more

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Acceleration of the block is ; It is given that ... more

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; It is given that .Mass of the ball is .Hence, ... more

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; It is given that the mass of the rocket m is 4.... more

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; It is given that mass of the billiard ball is .... more

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1.19 m/s2 , upward  ; It is given that weight of ... more

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; Suppose that both the forces are acting along ... more

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; It is given that the initial velocity of tug ... more

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Force due to water on boat is ; north of east. ; ... more

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; The weight of an object can be defined by the ... more

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0.774 ; It is given that the mass of planet A is .... more

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9.5810-9 N ; Consider that us assume that, mass of... more

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Magnitude of the friction force on the moon is , ... more

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; It is given that the distance of satellite from... more

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; It is given that mass of sun is .Mass of Earth ... more

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405 N ; The force experienced by a person on a ... more

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NA ; NA ; more

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and ; Let the mass of the moon be , mass of the ... more

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NA ; NA ; more

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The object will be moving with velocity . ; It is ... more

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The sun exerts  almost 172 times more ... more

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3rd particle should be located at position, or... more

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(a) 980 N(b) 637 N ; It is given that mass of the ... more

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Apparent force on the person is . ; It is given ... more

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1233 N ; It is given that mass of the women is .... more

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; It is observed that the coefficient of static ... more

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Velocity of the automobile after time t is v=6.92 ... more

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; It is observed that the mass of the picture is... more

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amax=11.92 m/s2 ; It is observed that the mass of ... more

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At ; It is observed that the coefficient of ... more

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Force F3=100 N must be applied by 530 from the ... more

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The mass of the person is . ; It is observed that ... more

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929.33 N ; It is observed that the mass of the ... more

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Tension in the rope is . ; It is observed that the... more

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Tension in the right side of the arm of the wire ... more

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0.140 ; It is given that angle of hill is .Sliding... more

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Largest angle that can make crutches with respect ... more

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405.82 N ; It is given that the mass of the ... more

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Height of the kite is h=32.15 m. ; It is given ... more

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0.621 m/s2 ; It is given that the upward buoyant ... more

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Force on bullet is F=4290 N. ; It is given that ... more

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18.03 m/s2, at an angle 56.31with respect to the ... more

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1316.21 N. ; It is given that mass of the laser is... more

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161.1 N ; It is given that mass of the boat and ... more

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9.44 m/s2 ; It is given that mass of the ... more

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6.56 m/s ; It is given that length of the ramp is ... more

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Acceleration of the airplane is . ; It is given ... more

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2734.36 N ; It is known that the mass of the log ... more

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The man's upward acceleration is a=0.14 m/s2. ; It... more

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5.2510-3 m/s2 ; It is observed that the mass of ... more

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The smallest magnitude of P is . ; It is observed ... more

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821.73 N ; It is observed that the mass of the ... more

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Shortest time required is 2.56 s. ; It is observed... more

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8.171 s ; Starting from rest, the forces acting on... more

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; It is observed that constant velocity of a ... more

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; It is observed that the mass of the fist is , ... more

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Acceleration of the block is . ; It is observed ... more

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Minimum force required to keep the book from ... more

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Force exert by the person on the chin up bar is ... more

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1725 N, due west. ; It is observed that the mass m... more

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Magnitude of net force acting on the ball is F=133... more

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Tension in the left side is T1=918.57 N and to the... more

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Distance covered by the block on inclined plane is... more

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Maximum acceleration of the truck is . ; ... more

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F3 = 8000 N, due negative x-axis ; The forces on ... more

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Acceleration of the block can be easily calculated... more

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