Work, Energy and Power

Related Questions

• A particle moves under the effect of a force F = Cx from x = 0 to $x = {x_1}$. The work done in the process is

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• A body of mass 5 kg is placed at the origin, and can move only on the x-axis. A force of 10 N is acting on it in a direction making an angle of ${60^o}$ with the x-axis and displaces it along the x-axis by 4 metres. The work done by the force is

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• A mass of 20 kg moving with a speed of 10m/s collides with another stationary mass of $5kg.$ As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will be

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• If the K.E. of a body is increased by 300%, its momentum will increase by

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• A body of mass m kg is lifted by a man to a height of one metre in 30 sec. Another man lifts the same mass to the same height in 60 sec. The work done by them are in the ratio

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