Question

If the...............of a body is doubled, it's Kinetic Energy is Four times of Previous Value.
[a] Mass
[c] Acceleration
[c] Velocity
[d] Kinetic Energy.​

Answer 1

Answer:

c) velocity

Explanation:

K.E=

$\frac{1}{2} m {v}^{2}$

if velocity is doubled,say 2 v

then new K.E=1/2 m(2v)^2

=1/2m(4v^2)

=4×(1/2mv^2)

so it's four times initial value