If momentom of object is double find percentage change in Kinetic energy
Answers
Answer:please mark me as brainliest
Explanation:
Percentage increase in kinetic energy is 300%
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Explanation:
Momentum of a body of given mass, is directly proportiional to its velocity. In fact momentum is mass multiplied by velocity.
Kinetic energy of a body of given mass, is directly proportiional to its square of its velocity.
When momentum is doubled, mass remaining constant, this means velcity is doubled.
Hence, kinetic energy becomes
2*2=4 times i.e. say from 100 units to 400 units.
and percentage increase in kinetic energy is 400-100=300%
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Answer: The relation between KE and momentum is
KE = p^2 /2m -------------1
If its momentum is doubled then p =2p
Due to which new KE energy ( KE ') = (2p)^2/2m
= 4( p^2/ 2m)
= 4 KE ( from equation 1)
change in KE = KE' - KE
= 4KE -KE
= 3KE
% Change in KE = ( change in KE / initial KE ) *100%
= ( 3 KE / KE ) * 100%
= 300% ans
Explanation: