A velocity is walking on a railway platform with a load of 25 kg on his head. What is amount of work done by him
Class 9
Answers
Answered by
1
Answer:
Zero
Explanation:
As he walks the gravitational force that is always downwards makes right angle with the displacement. We know that W=F. S and here angle is 90degree so work would b zero
Answered by
1
Explanation:
Coolie is carrying a load on his head so force exerted by it under gravity and displacement of the load makes 900 angle. W = 0 [ ∵ Force is perpendicular to the displacement ] Therefore, Work done by the coolie is zero.
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