Question

Q.22
If the mass of the body is made three times and the velocity becomes double then the
kinetic energy will increase:
A) 6 times
C) 24 times
B) 12 times
D) 18 times
​

Answer 1

Answer:

12 times

Explanation:

initially

KE(initial) = 1/2 mv^2

after the change

KE (final)= 1/2 × 3m × (2v)^2

= 12 (1/2 mv^2)

12 × KE ( initial)