Question:
A body moves a distance of 10m along a straight line under the action of a force of 5N.if the work done is 25 joules ,the angles which the force makes with the direction of motion of the body is
Answer:
W=F.S
W=FScosθ
Or, 25=5×10cosθ25
Or, cosθ =25/50 =1/2
Or, θ=60∘
Hence, the direction of motion of the body is 60∘
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