Question

calculate the change that should be affected in the velocity of a body to maintain the same kinetic energy
if the mass of the body is increased to four times.​

Answer 1

Answer:

velocity will become v/2

Explanation:

as we know k.e is given by mv^2/2

thus, mv^2/2 = m'v'^2/2

mv^2 = 4mv'^2

v'= v/2