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When a net force act on a body, it produces acceleration in the body in direction of the net force. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. This statement is in accordance with the _____.

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Important Questions on Force and Laws Of Motion

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Among the following, the body possessing highest momentum is :
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A packet of weight W was allowed to fall freely in a water tank with acceleration a<g. The magnitude of resistive force offered by water is :
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In a two body collision, the momentum is varying with time as shown in graph. The instantaneous force is maximum at: 

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A horizontal force F is applied to keep the block stationary on a frictionless inclined plane. Find the angle of incline, for which the applied force is equal to the weight of body: 

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A cork is immersed in a jar of water and released. How the cork will move if the jar is assumed to be kept in a satellite orbiting earth: 
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A person of weight W jumps to ground with his legs fixed and comes to rest with an upward acceleration of 3 g. (g is acceleration due to gravity). The force exerted by him during landing is: 
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A machine gun fires a bullet of mass 40 gram at a speed of 1200 m s-1. The man holding it can exert a maximum force of 144 N on the gun. How many bullets can he fire per second at the most?
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A wooden plank of length L rests on a frictionless floor. A boy of mass M now runs over the plank starting from its one end. If one wooden plank is M5, the distance covered by the boy relative to the ground will be:
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A small block of material having relative density 13 is immersed in a liquid and released. The block starts moving upwards with an acceleration a. The value of a is :(g is the acceleration due to gravity)
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A force ‘F’ is applied on one end of a rope of length ‘a’. P and Q are two points of length ‘b’ from nearest end. The ratio of tensions in string at P & Q is :

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A bullet of 20 g is horizontally fired with velocity of 150 m s-1 from pistol of mass 2 kg. What is the recoil velocity of the pistol?
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The variation in momentum with time, for a body under collision is shown in figure. The maximum & minimum instantaneous forces are respectively on these points:

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An object of mass 2 kg moving under the action of a force which varies with time as shown in the figure.
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Which one of the following statements is correct for the interval from 0 to 20 s?
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An object of mass 10 gm is moving with an acceleration of 10 m/s2. Force acting on the object will be:
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A light and a heavy object have same momentum, then:
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Action and reaction force acts on:
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According to third law of motion, action and reaction:
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What is the SI unit of momentum?