Question

what happen to momentum of a body when.... velocity is doubled and mass is halved?​

Answer 1

Answer:

it remains same

Explanation:

p=mv

if new m= m/2

new v = 2v

new m *new v = m/2 *2v

=mv

thus the initial and final values wont change

hence it is same

Answer 2

Initially ,

Let the mass of the body be m and its velocity be v

hence the momentum is given by

P i= m v

Now,

the velocity of the body is doubled

v ' = 2 v

the masses is halved

m' = m / 2

New momentum ,

$p f\: = \frac{2mv}{2}$

$p f\: = mv$

$pf\: = pi$

the momentum of the body remains the same