Suppose you are playing hockey on a new-age ice surface in which there is no friction between the ice and the hockey puck.You wind up and hit the puck as hard as you can.Just after the puck loses contact with your stick,the puck
A)will not slow down or speed up.
B)will start to slow down.
C)will speed up a little,and then slow down.
D)will speed up a little,and then move at a constant speed.

Question

Quizplus · Accepted Answer

Friction is the force that opposes motion between two surfaces in contact. If there is no friction between the ice and the puck, there is no opposing force to slow the puck down after it leaves your stick. Therefore, the puck will continue to move at a constant speed in the same direction.

Suppose You Are Playing Hockey on a New-Age Ice Surface