Laws of Motion

Related Questions

• A block is kept on an inclined plane of inclination $\theta$ of length l. The velocity of particle at the bottom of inclined is (the coefficient of friction is $\mu$)

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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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• A body takes time t to reach the bottom of an inclined plane of angle $\theta$ with the horizontal. If the plane is made rough, time taken now is 2t. The coefficient of friction of the rough surface is

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• A mass of 10 gm is suspended by a string and the entire system is falling with a uniform acceleration of $400\,cm/{\sec ^2}.$The tension in the string will be $(g = 980\,cm/{\sec ^2})$

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• The blocks A and B are arranged as shown in the figure. The pulley is frictionless. The mass of A is 10 kg. The coefficient of friction of A with the horizontal surface is 0.20. The minimum mass of B to start the motion will be

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