The kinetic energy of a body because four times its initial value ..The new linear momentum will be

Options

A. eight times that of initial value
B. four times that of initial value
C. twice of the initial value
D. remain as the initial value

Answer

c

Explanation

For a body of mass m, moving with velocity v momentum`(p) = mass (m) xx velocity (v)`Also kinetic energy `(K) = (1)/(2) mv^(3)` Since m is constant when kinetic energy because four times velocity because twice of its value New linear mometum is given by
`p = m xx 2v= 2mv = 2p` Hence new linear momentum because twice of the initial value