if the velocity of an object is increased by 0.1% then the kinetic energy is increased by?
A) 0.1%
B) 0.2%
C) 0.5%
D) 0.01%
Answers
Answered by
30
Answer:
B
Explanation:
KE=0.5 MV^2
therefore by further calculation we get answer 0.2%
Answered by
2
From the given question the correct answer is :
C) 0.5%
if the velocity of an object is increased by 0.1% then the kinetic energy is increased by C) 0.5%
momentum, p=mv
v=
p=m=
taking log and then differentiating on both the sides, we get,
Δp/p=1/2=(Δm/m)+1/2(ΔE/E)
Δp/p=1/2×0.1
=0.5
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