Find the ratio of their kinetic energies

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workandenergy

#1

A car and a truck have the same speed of 30 ${{ms}^{-1}}$. If their masses are in the ratio of 1 : 3, find the ratio of their kinetic energies.


#2

Given, vx = v2 = 30 ${{ms}^{-1}}$
According to question,${ m}{ 1}$/
${ m}
{ 2}$ = 1/3
KE of Car / KE of Truck = m1/m2 =1/3