Question

A pool ball moves at 2.0 m/s to the right (+x direction) and
hits an identical, stationary ball. After the first ball strikes
the 2nd ball, the first ball's velocity is 1.841 m/s, at an angle
of +23. Assuming an elastic collision (and ignoring friction and
rotational motion), find the struck ball’s (a) speed and (b)
direction after the collision.

Provide your answer for (a) and (b) with three significant digits
of precision, and provide the direction in (b) in unit circle
notation.

Answer #1

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