Posted by Tamera on Friday, September 7, 2012 at 12:22am.
A tennis ball with a speed of 6.0 m/s is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 4.0 m/s. If the ball is in contact with the wall for 0.012 s, what is the average acceleration of the ball while it is in contact with the wall? Take the initial direction of motion to be the positive direction. (Indicate the direction of the acceleration by the sign of your answer.)

physics  charlie, Friday, September 7, 2012 at 6:27am
Initial velocity is given, final velocity is given, and the time is given. Using these, rearrange
v=u+at to solve for a.
The ball is slower after the bounce, so what sign will the acceleration be?
Answer This Question
Related Questions
 physics   A tennis ball with a speed of 11.4 m/s is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 8.64 m/s. If the ball is in contact with the wall for 0.0104 s, what is the average magnitude of acceleration of the ball while it is in contact with the wall?
 Physics  A tennis ball with a speed of 5.0 m/s is thrown perpendicularly at a ...
 Physics  A tennis ball with a velocity of 24.4 m/s is thrown perpendicularly at...
 physics  A tennis ball with a velocity of +9.6 m/s to the right is thrown ...
 physics  A tennis ball with a speed of 12.5 m/s is moving perpendicular to a ...
 Physics  A tennis ball with a speed of 14m/s is moving perpendicular to a wall...
 physics  I have been stuck on this for a while now and cant figure out what it ...
 uta  A tennis ball with a speed of 25.9 m/s is moving perpendicular to a wall. ...
 Physics URGENT  A tennis ball with a velocity of +10.7m/s to the right is ...
 physics  A 220g ball strikes a wall with a speed of 7.0 m/s and rebounds with ...
More Related Questions