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प्रश्न
You lift a suitcase from the floor and keep it on a table. The work done by you on the suitcase does not depend on ______.
विकल्प
the path taken by the suitcase
the time taken by you in doing so
the weight of the suitcase
your weight
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उत्तर
You lift a suitcase from the floor and keep it on a table. The work done by you on the suitcase does not depend on the weight of the suitcase.
Explanation:
When the suitcase is lifted from the floor to the table,
W = mgh
For the same height hh, the work done depends on the weight of the suitcase. It does not depend on your weight, the path taken, or the time taken.
संबंधित प्रश्न
A body is initially at rest. It undergoes one-dimensional motion with constant acceleration. The power delivered to it at time t is proportional to ______.
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A heavy stone is thrown from a cliff of height h with a speed v. The stoen will hit the ground with maximum speed if it is thrown
A heavy stone is thrown in from a cliff of height h in a given direction. The speed with which it hits the ground
(a) must depend on the speed of projection
(b) must be larger than the speed of projection
(c) must be independent of the speed of projection
(d) may be smaller than the speed of projection.
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Which of the following statement is correct?
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(g = 10 m/s2)
