Question

What will be the kinetic energy of a body when its mass is made four times and its velocity is doubled.

Answer 1

we know that
K.E = 1/2mv^2
if mass = m/4
and velocity is 2v
then
k.E= 1/2×m/4×4v^2
= 1/2m.v^2
that means K.E will remain samw

Answer 2

Answer:

The kinetic energy will be 16