Question

Find the work done in Joule , if on applying force of 5N the body moves by 20 cm.

Answer 1

Answer:

1 Joule

Explanation:

work = force * displacement

As 100 cm = 1m

20 cm = 0.2 m

so work done = 5N * (0.2 m) = 1 Nm = 1 Joule

Answer 2

Explanation:

When the force F is constant and the angle between the force and the displacement s is θ, then the work done is given by W = Fs cosθ. Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J).

So ,

W=(5)×(20)cos∅

now calculate it with calculator

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