Question

the mass of body is halved and its velocity is tripled .What is the change in kinetic energy?

Answer 1

Heya Friend ☺

Here is your answer
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Given mass is halved 1/2
and velocity is 3

Applying the kinetic energy formula
$ke = \frac{1}{2}m {v}^{2} \\ \frac{1}{2} \times \frac{1}{2} \times {3}^{2} \\ \frac{1}{4} \times 9 \\ \frac{9}{4}$
So kinetic energy of the body will be decreased by 9/4 times


Hope it helps you ☺