what will be the Kinetic energy if :- a) mass of a body is doubled without changing its velocity. b) Velocity of a body is doubled, mass remaining constant.
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Explanation:
a) kinetic energy will become 4 times the original kinetic energy
b) when the velocity is doubled mass remaining constant kinetic energy becomes 4 times
anurageca:
I think the answer of first will be 2 as the formula of KE = mv^2
the formula is KE= ½× m× v²
So, the answer will be zero as the mass is doubled so KE = 1/2 × 2 × v^2
means the kinetic energy will remain as such
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