Question

Two bodies of mass 4kg and 1kg are moving having equal kinetic energy . The linear momentum of the bodies will be in the rati

Answer 1

Answer:

2:1

Reason:

Here kinetic energies are equal

implies 1/2mv1^2=1/2mv2^2

implies 1/2(4)v1^2=1/2(1)v2^2

implies 4v1^2=v2^2

apply square root b/s to get

2v1=v2

momentum of first=4xv1=4v1

momentum of 2nd=1×v2=2v1

ratio of the two=2:1.

Answer 2

Answer:

Explanation:

Answer:

2:1

Reason:

Here kinetic energies are equal

implies 1/2mv1^2=1/2mv2^2

implies 1/2(4)v1^2=1/2(1)v2^2

implies 4v1^2=v2^2

apply square root b/s to get

2v1=v2

momentum of first=4xv1=4v1

momentum of 2nd=1×v2=2v1

ratio of first and second=2:1.