Question: A stone of mass 2 kg is projected upward with KE of 98 J. The height at which the KE of the body becomes half its original value, is given by (Take g = 10ms −2 )
(A) 5 m
(B) 2.5 m
(C) 1.5 m
(D) 0.5 m
Answer: Option (B)
Solution:
A stone of mass 2 kg is projected upward with KE of 98 J. The height at which the KE of the body becomes half its original value, is given by (Take g = 10ms −2 )
with
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