2-17. Two smooth disks A and B of 5 kg and 8 kg, respectively, collide with initial velocities 
and 
. If the coefficient
of restitution for the disks is 
, determine the 
component of the final
velocity of each disk just after collision.
Solution:
Resolving the initial velocities
into 
and 
components,
Conservation
of 
momentum
Coefficient
of Restitution 
Thus,
Thus,
we have
Therefore,
and 
.
Ans.