Laws of Motion

Related Questions

• A body of mass 2 kg is being dragged with uniform velocity of 2 m/s on a rough horizontal plane. The coefficient of friction between the body and the surface is 0.20. The amount of heat generated in 5 sec is $(J = 4.2\,joule/cal$ and $g = 9.8\,m/{s^2})$

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• A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of $1\,m{s^{ - 2}}$. If the coefficient of sliding friction is 0.2, then the force exerted by the horse in forward direction 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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• A lift is moving downwards with an acceleration equal to acceleration due to gravity. A body of mass m kept on the floor of the lift is pulled horizontally. If the coefficient of friction is $\mu$, then the frictional resistance offered by the body is

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• A cork is submerged in water by a spring attached to the bottom of a pail. When the pail is kept in a elevator moving with an acceleration downwards, the spring length

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