A boy is carrying a load of 4kg on his back and moves 100m on a levelled road. The
work done against the gravitational force will be
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Answer:
------------➡️Displacement
|□
| 90°
|
⬇️
Force
Force = (f)
Displacement = (d)
Work done = f × d cosθ
= f × d cos90°
= (f × d) O
= Zero(O)
Hope this helps
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