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Question

What happens to power when force is perpendicular to velocity?


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Solution

Step 1: Given

Force = F

velocity= V

Angle = 90ο

Step 2: Formula

P=F.VwherePispower

Step 3: Calculation

We know that power is dot product of force and velocity.

P=F.Vcosθ=FVcos90=0(cos90=0)

Hence, Power would be zero.


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