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संबंधित प्रश्न
Work done = Force × ........................................
.A man raises a box of mass 50kg to a height of 2m in 20s, while another man raises the same box to the same height in 50s. Compare:
(i) the work done, and
(ii) the power developed by them.
State the law of conservation of energy.
How much work is done when a force of 1 N moves a body through a distance of 1 m in its own direction?
A man carrying a suitcase in his hand is walking horizontally. What is the work done against gravity?
State the energy changes which take place when A stone dropped from the top of a cliff reaches the ground after some time.
A is a push or a pull ______.
A body of mass 0.5 kg travels on straight line path with velocity v = (3x2 + 4) m/s. The net work done by the force during its displacement from x = 0 tox = 2 m is ______.
