Notifications
Clear all
Motion
1
Posts
2
Users
0
Likes
349
Views
0
23/10/2021 5:59 pm
Topic starter
A ball hits a wall horizontally at 6.0 m s-1. It rebounds horizontally at 4.4 m s-1. The ball is in contact with the wall for 0.040 s. What is the acceleration of the ball?
1 Answer
0
23/10/2021 6:02 pm
Initial velocity, u = 6m/s
Final velocity, v = -4.4 m/s (the ball rebounds in opposite direction)
Time, t = 0.040 s
Acceleration velocity = \(\frac{u - v}{t}\)
= \(\frac{-4.4 - 6}{0.040}\) = -260 m/s2