The linear momentum of a body is increased 100% . The kinetic energy increases by ............ .
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Answer:
700%
Explanation:
The momentum is increased by 100 % which means it becomes
P=2mv
KE₁ = mv²/2
KE₂ = P²/2m
=(2mv)²/2m
=4mv²
KE₁:KE₂ = mv²/2 : 4mv²
= 1 : 8
KE increases by 7 times or by 700 % [ as change in KE = KE₂-KE₁ ]
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