A mass of 5kg is at a point A on a table. It is moved to point b, 25cm away, by applying a force of 20N in the direction of force. What is the work done on the object by (i) the gravitational force, and (ii) the applied force.
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Answer:
(i)
Work done by gravitaional force(Wg) = F×s
Wg = 50×0 [as there is no displacement along y axis]
Wg = 0J
(ii)
Work done by applied force(Wa) = F×s
Wa = 20×25
Wa = 500J
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