Practice Problem 2-10 - Part 4 - B

A billiard ball travels \(0.46 \;m\) in the \(+x\) direction, having started at the origin \((x = 0)\), bounces off another ball to travel \(0.84\; m\) in the opposite direction, then bounces from the edge of the billiard table finally coming to rest \(0.12 \;m\) from that edge. The entire motion is one-dimensional and takes \(2.5 \;s\). Determine the billiard ball's (a) average speed, (b) final position, (c) average velocity.

Correct: The displacement is the final position - the initial position
\(= -0.26\; m - 0 \;m = -0.26 \;m\)

Therefore the magnitude of the velocity is:
\(v = -0.26\;m/2.5\; s = -0.10\; m/s\)

You have completed this problem.