Physics, asked by hemangivishe, 1 year ago

if the momentum of the body is decreased by 10% then the percentage decrease in its kinetic energy

Answers

Answered by BigSmoke
4
Use k = p square /2m
Now new Momentum will be p+10% of p
Use this value to find new value of K and let denote this by K' by changing P to p+10% of p

% decrease in kE will be K' - K / K Multiply by 100
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