the momentum of a body decreases by 40% calculate the percentage decreases in its kinetic energy
Answers
Answered by
0
P=mv momentum
And K=½mv² kinetic energy.
Now K=P²/2m
If P→0.9P
Then K→ 0.9²=0.81
i.e. decreased by 19 percent.
Similar questions
Psychology,
3 months ago
Math,
3 months ago
Science,
7 months ago
English,
7 months ago
Math,
1 year ago