Recent content by pacce

but doesn't it apply a torque which causes the angular acceleration (while rolling downhill)

im confused about how to know which direction the static friction points during rolling. if a ball was rolling uphill, its angular deceleration should be caused by a torque, and that torque is from the static friction right? Then wouldn't the static friction be pointing up the hill towards the...

Homework Statement Block A is moving to the right at 2 m/s when it collides with an identical block B that is initially at rest. After the collision, block A is moving back to the left at 1 m/s and block B is moving to the right at 3 m/s. Which answer best describes the type of collision that...