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how fast is a 5-kilogram object moving if its kinetic energy is 101.25 joules?

Given that the kinetic energy of the 5 kg object is 101.25 J.we have to calculate the velocity of the body.

k=101.25 J  

mass m=5 kg  

the expression for kinetic energy is  

= 6.36 m/s

Explanation:

A moving object possess kinetic energy and it is determined the mass of the object and its velocity.

Faster objects will have heavier kinetic energy than slower ones and heavier objects will have greater kinetic energy than lighter ones.

Increase in velocity affects kinetic more than the increase in mass because the square of the velocity determines kinetic energy.

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