Question

please help me out with this question
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Answer 1

Answer:

160J

Explanation:

here the general formula of work is used and the angle is zero degree( as it is assumed that Type of motion of the man is rectilinear)

Work = F.d (here F = m.a)

Work = (m.a).d

now just put the values

Work = 4kg×80m×1/2m/s²

Work = 160J

Answer 2

Hey dear here is your answer with solution