Question

Every site is telling that if linear momentum is same then the velocity of lighter mass will be higher how?? (P=mv) m is low for lighter one then how can velocity be greater than the heavier one..... Pls explain which opt ia correct and how

Answer 1

Answer:

1. both heavy and light body

Explanation:

because two has equal momentum

Answer 2

let lighter mass be m1 and heavier mass be m2

from given: m1<m2

P1=P2

m1v1=m2v2

as momentum is same,

(v2<v1 )is compulsory.

therefore,KE=p^2/m

KE1/KE2= m2/m1

therefore, KE1 will be greater than KE2.