8.6 Exercise 4

Two identical pucks collide on an air hockey table. One puck was originally at rest. (a) If the incoming puck has a speed of 6.00 m/s and scatters to an angle of $\text{30} . 0º$,what is the velocity (magnitude and direction) of the second puck? (You may use the result that $\theta_{1} - \theta_{2} = \text{90}º$ for elastic collisions of objects that have identical masses.) (b) Confirm that the collision is elastic.