A tennis ball with a velocity of +10.7m/s to the right is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a velocity of -5.9 m/s (to the left). If the ball is in contact with the wall for 0.009s, what is the average acceleration of the ball while it is in contact with the wall?
(Answer is _m/s^2 to the _{left or right})
1 answer