Problem: A tennis ball with a velocity of 8.23 m/s is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with ah a velocity of -5.55 m/s to the left.
A- If the ball is in contact with the wall for 0.011s, what is the average acceleration of the ball while it is in contact with the wall?
Please show all work and clearly explain to find the average acceleration of the ball while it is in contact with the wall.