Question

A body of mass 4 kg moves with a velocity of 10 m/s collide elastically with a body of mass 8 kg is at rest, then the velocity of 8kg body is​

Answer 1

Answer:

m1= 4 kg ,m2=8kg, v1=10m^-1 , v2=?

Explanation:

m1v1=m2v2

4multiply10=8v2

40=8v2

v2=40divide 8

v2=5ms^-1