A body of mass 4 kg was moving with a velocity of 10m/s Find its kinetic energy. If i velocity doubled what will be the value of kinetic energy?
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Explanation:
As we know Kinetic Energy= 1/2mv^2
Mass(m) = 4kg
Velocity (v) = 10m/s
Putting the values in the formula
Kinetic Energy = 1/2 (4) ( 10)^2
= 2 × 100
= 200 J
If the velocity would be doubled, the value of the kinetic energy will become 4 times
= 4 × 200
= 800 J
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