1.

Calculate the work done by a machine by a porter holding a suitcase weighing 5 kg in his hand.Ans: W = 0 J​

Answer»

Answer:

Holding alone is No work

W = component of orce APPLIED in the Direction of Movement x distance TRAVELLED..

W = F S Cos theta. theta is ANGLE between force and distance.

= 5N X 0 = 0 Joule



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