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A man drags a box of mass 20kg on a hori...

A man drags a box of mass 20kg on a horizontal floor as shown in figure by a string which wakes an angle `45^(@)` with the horizontal. If man exerts a force `F=100sqrt(2)N` on string and dragged the for a distance 10m. Work done by man is,

A

800J

B

`1000sqrt(2)J`

C

`1000J`

D

200J

Text Solution

Verified by Experts

Work done by man `rArr(F cos 45^(@)).d`
=1000
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