Question : The velocity of a body of mass 20 kg decreases from 20 ms−1 to 5 ms−1 in a distance of 100 m. Force on the body is
(A) −27.5 N
(B) −47.5 N
(C) −37.5 N
(D) −67.5 N
Answer : option (C)
Solution :
The velocity of a body of mass 20 kg decreases from 20 ms−1 to 5 ms−1 in a distance of 100 m. Force on the body is
with
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