Work, Energy and Power

Related Questions

• The power of pump, which can pump 200 kg of water to a height of 50 m in 10 sec, will be

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• A ball is dropped from a height h. If the coefficient of restitution be e, then to what height will it rise after jumping twice from the ground

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• A ball is released from certain height. It loses 50% of its kinetic energy on striking the ground. It will attain a height again equal to

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• Two masses ${m_A}$and ${m_B}$moving with velocities ${v_A}$and ${v_B}$in opposite directions collide elastically. After that the masses ${m_A}$and ${m_B}$move with velocity ${v_B}$and ${v_A}$respectively. The ratio $({m_A}/{m_B}$) is

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• You lift a heavy book from the floor of the room and keep it in the book-shelf having a height 2 m. In this process you take 5 seconds. The work done by you will depend upon

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