In which of the following cases, no work is done by the force:
Physics · JEE Advanced · NTA Exams — Work, Energy and Power
In which of the following cases, no work is done by the force:
- A man carrying a bucket of water, walking on a level road with a uniform velocity
- A drop of rain falling vertically with a constant velocity
- A man whirling a stone tied to a string in a circle with a constant speed.
- A man walking up on a staircase
Answer
(A) A man carrying a bucket of water, walking on a level road with a uniform velocity, (B) A drop of rain falling vertically with a constant velocity, (C) A man whirling a stone tied to a string in a circle with a constant speed.
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