A body of mass m has a velocity v. If the mass of the body increases 81 times but the kinetic energy remains same calculate the new velocity.
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velocity decrease by 9 times.
raghav152:
PLEASE SOLVE THE FULL SUM AND SEND
let change in velocity be X , 1/2 mv² =1/2× 81m×Xv² , now slove it u will get the ans
its 1/2×81m×(Xv)²
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