(solution) A tennis ball with a speed of 15.1 m/s ismoving perpendicular to

(solution) A tennis ball with a speed of 15.1 m/s ismoving perpendicular to

A tennis ball with a speed of 15.1 m/s ismoving perpendicular to a wall. After strikingthe wall, the ball rebounds in the oppositedirection with a speed of 7.9577 m/s.If the ball is in contact with the wall for0.0139 s, what is the average acceleration ofthe ball while it is in contact with the wall?Take ?toward the wall? to be the positivedirection.Answer in units of m/s2.