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# A block of mass 10 kg, a force 20N is applied to the block and it displaced the block by 4 m. If angle between force and displacement is 900. Calculate the work done by force.0 J80 J2,400 J600 J60 J

A
600 J
B
0 J
C
2,400 J
D
60 J
E
80 J
Solution
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#### The correct option is A 0 JWork done by force on the block=W=→F.→s=Fscosθ=Fscos90∘=0J

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