Question

Two spheres, each of mass m and velocity v are involved in a perfectly inelastic head-on collision. The percentage loss in Kinetic energy due to the collision is​

Answer 1

Answer:

by conservation of momentum

mv=(3+1)v

f

v

f

=

4

v

loss in kinetic energy=

2

mv

2

−

2

4m(

4

v

)

2

=

8

3mv

2

=

4

3

KE

i

Answer 2

Answer:

by conservation of momentum

mv=(3+1)vf

vf=4v

loss in kinetic energy=2mv2−24m(4v)2=83mv2=43KEi

hope its help you