Question

a course of 20 newton is applied on a body if the angle between the line of action and the displacement is 45 degree and the amount of displacement is 4 then find out the work done​

Answer 1

$\huge\bigstar\underline\pink{Answer}$

work done = F.S cos theta

W = 20 × 4 × cos 45°

W = 80 × 1/√2

W = 80/√2

or W = 40√2

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