Question

A force of 20 N displays a body through a distance of 1 m at an angle of 60° from its own direction. Calculate the amount of work done.

Answer 1

Given

Force (F) = 20 N

Displacement (s) = 1 m

Angle between force and displacement θ = 60°

★ Work (W) = Fs cos θ

= 20 × 1 × cos 60°

= 20 × 1 × ½

= 10 J

Answer 2

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ANSWER:

F= 20 N

S=1m

Angle=60°

Therefore,

Work= f×s× cos60°

= 20 × 1 × 1/2

= 10 J

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