junior92 junior92

Today at 10:26 AM
Physics

Answered

A 95.0kg weightlifter pushes on a 800,000 kg wall for 400s but it does not move. How much work does he do on the wall?

Answer :

Kalahira Kalahira

Today at 10:31 AM

The weightlifter does no work. Although he has exerted force, work is the product of force over distance. Since he has not moved the wall he has done no work.

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