If the mass of the body is made 3 times and the velocity becomes double, the kinetic energy will increase?
Answer: 12 times
Explanation
Kinetic energy formula: KE = ½ mv²
Let initial KE = ½ * m * v²
New KE = ½ * (3m) * (2v)²
= ½ * 3m * 4v²
= 6mv²
Now divide new KE by original KE:
(6mv²) / (½mv²) = 12 times
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