Solution)
We know, Work done,
W = F * d = 4.8* 0.610 = 2.928 =3Joules (Ans)
Now, we know
1 cal = 4.186 J
So,
W = 3 / 4.186 = 0.7166 calories=0.0007166 kcal (Ans)
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Good luck!:)
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