Question

A particle of mass m collides with another stationary particle of mass m. If the particle m stops just after collision, the coefficient of restitution is equal to

Answer 1

Answer:

As net horizontal force acting on the system is zero, hence, momentum must remain conserved.

Hence

mu+0=0+Mv

2

v

2

=

M

mu

A sper defination, e=

(u

1

−u

2

)

(v

2

−v

1

)

=

u−0

v

2

−0

=

u

v

2

=

M

m