Question

calculate the ratio of mommentum when mass of obj halved

Answer 1

Answer:

2:1

Explanation:

let original mass be m

and velocity be v

new mass = m/2

initial momentum = p1 = m1v1 = mv

new momentum = p2 = m2v2 = (m/2)×v

Ratio of momentum = p1/p2 = mv/(mv/2)

= p1/p2 = 2/1 (mv, mv gets cancelled)

therefore p1:p2 = 2:1