Question

Imagine putting yourself in a push-up position and staying there. Assume that neither the floor nor your body moves. You will use a lot of energy but do no work. How can energy be consumed when no work is done?

Answer 1

Answer:

Saying that there is no work is done is wrong.

Explanation:

Though neither the floor nor the body moves but the hands have to maintain the body position as it is and for doing this the work is done not in terms of physics but in terms of biology. The gravity is acting as a accelerator and to oppose the gravity our body has to do a large amount of work as the mass is high.

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