A person hits a trampoline while moving downward with a speed of 4 m/s and rebounds a short time later with roughly the same speed upward. If the person is in contact with the trampoline for about 1.8 s, what are the magnitude and direction of the person’s average acceleration during this time interval? (Hint: You can ignore the effects due to gravity.) (Round the answer to one decimal place.) The magnitude is ____ m/s2. The direction is ________( Choose One upward, downward, to the right, to the left)

A person hits a trampoline while moving downward with a speed of 4 m/s and rebounds a short time later with roughly the same speed upward. If the person is in contact with the trampoline for about 1.8 s, what are the magnitude and direction of the person’s average acceleration during this time interval? (Hint: You can ignore the effects due to gravity.) (Round the answer to one decimal place.) The magnitude is m/s2. The direction is ____( Choose One upward, downward, to the right, to the left)