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Question
Ria is swimming across a swimming pool with the method of butterfly stroke. She is doing work.
Ria is swimming across a swimming pool with the method of butterfly stroke. She is doing work.
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Solution
The correct option is A True
Work done = force × displacement
When swimming, there is a force exerted by Ria - muscular force. Displacement is non zero, as she moves forward. Hence, the work done is non zero.
True
Work done = force × displacement
When swimming, there is a force exerted by Ria - muscular force. Displacement is non zero, as she moves forward. Hence, the work done is non zero.
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