Ball (A) which has mass = m moves along a frictionless horizontal table with velocity
(7i + 5j) it collides with another ball (B) of mass = 4m its velocity is (3i + 3j). Coefficient of restitution is e between the balls. Assume that the common normal at the impact point is the i axis. The balls can be modelled as particles and ignore rotation of the balls.
a) Give 4 eqns relating the velocities of A&B after the collision
b) Determine theses velocities after the collision in terms of the cartesian vectors i & j and e.
c) Why cant the velocity of B after the collison be in the i direction only? Explain?