If a body of mass 2 kg free to move vertically and a force of 40 m is applicable as shown in figure. Find the change
in kinetic energy when the body will move a distance of 2m.take g = 10m/s2. (Give answer WITH explanation)
A. 80 J
B. 10 J
C. 40 J
D. 20 J
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Answer:
It's 40 J
Explanation:
Applying work energy theorem.
Work external + work gravity = change in k.e
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