Energy :: Discussion


3.The kinetic energy of a body becomes four times of its initial value, then new momentum will?
A.Become twice its initial value
B.Become thrice its initial value
C.Become four times its initial value
D.Remains constant
Answer:  Option  A
Explanation:

p = √2mK
p = √(2m×4K) = 2√2mK = 2p
If the kinetic energy of a body becomes four times of its initial value, then new momentum will become twice its initial value.

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Published by:Michael Daani

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