Two spheres move along the same straight line on a frictionless surface. Sphere P has mass 1kg and moves at 10ms−1 to the right, while sphere Q has mass 2kg and moves at 4ms−1 to the left. The coefficient of restitution for their collision is 0.5.
a. (a) Find the speed and direction of each sphere immediately after collision.
b. (b) Calculate the loss of kinetic energy produced in the collision.