a force of 20 n acts on a body .if the displacement of the body is 80 cm in the direction opposite to that of the force , calculate the work done by the force
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Work done is defined as force into displacement
Work done = FCosθ
= 20 ∗ 1 ∗ Cos45 (The value of Cos45 is 21 ) = 20 *1/√2
= 10 √2 J
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w=FS
w=20*80/100=
w=1600/100
w=16joule
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