13. An object of mass m and velocity v has kinetic energy 1800 J. Find the new kinetic
energy if the velocity of the object becomes one third.
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Step-by-step explanation:
1/2ms^2=1800j
new ke= 1/2m1/3s^2
new ke= 1/2ms^2 / 1 /2m1/9s= 1800
1/3=1800=600joules
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