Laws of Motion

Related Questions

• The time in which a force of 2 N produces a change of momentum of $0.4\,kg - m{s^{ - 1}}$ in the body is

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• The average force necessary to stop a bullet of mass 20 g moving with a speed of 250 m/s, as it penetrates into the wood for a distance of 12 cm is

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• The linear momentum p of a body moving in one dimension varies with time according to the equation $p = a + b{t^2}$ where a and b are positive constants. The net force acting on the body is

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• A machine gun fires a bullet of mass 40 g with a velocity $1200\,\,m{s^{ - 1}}.$ 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 train is moving with velocity 20 m/sec. on this dust is falling at the rate of 50 kg/minute. The extra force required to move this train with constant velocity will be

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