Question

On applying a force of 8kg-watt to a body it displaced 4m in the direction of force .find the amount of work done

Answer 1

Formula :

Work = Force × displacement

Given :

Force = 8 N

Displacement = 4 m

So :

Work = 8 N × 4 m

         = 32 N m

         = 32 J

[ 1 N m  = 1 J ]

The work done is 32 J

Hope it helps !

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Answer 2

Force F=8kg watt = 8 N
Displacement = 4m
Work done =F. d cos x
Here x=0 and cos x = 1 as displacement is in direction of motion

W=4 * 8 = 32 J