Laws of Motion

Related Questions

• Starting from rest, a body slides down a 45° inclined plane in twice the time it takes to slide down the same distance in the absence of friction. The coefficient of friction between the body and the inclined plane is

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• A man measures time period of a pendulum $(T)$ in stationary lift. If the lift moves upward with acceleration $\frac{g}{4},$ then new time period will be

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• A horizontal force of 10 N is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is 0.2. the weight of the block is

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• A boy whose mass is 50kg stands on a spring balance inside a lift. The lift starts to ascent with an acceleration of $2m{s^{ - 2}}.$ The reading of the machine or balance $(g = 10\,m{s^{ - 2}})$is

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• A body of mass 5kg rests on a rough horizontal surface of coefficient of friction 0.2. The body is pulled through a distance of 10m by a horizontal force of 25 N. The kinetic energy acquired by it is ($g = 10 m/s^2$)

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