Question

A body of mass 'm' and velocity 'v' has a momentum 'P'. If the body is doubled ,mass is halved, the value of momentum is what?​

Answer 1

Explanation:

Momentum is directly proportional to velocity. If the momentum of an object is doubled, but its mass does not increase (so velocity remains well below the speed of light), then its velocity is doubled. If the velocity is doubled then the kinetic energy increases by the square of 2, or four time.

Answer 2

Answer:

p' = [m/2]v

Explanation:

Given:

mass = m          new mass = m/2

velocity = v

momentum = p

To Find :

new momentum = ?

Solution:

momentum [p] = mv

where,

m = mass

v = velocity

initial momentum = mv

p = mv

new momentum

assuming velocity to be same

p' = [m/2]v

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