A hockey puck slides to the right (positive -direction) across ice and slows…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A hockey puck slides to the right (positive x-direction) across ice and slows uniformly until it comes to rest. Air resistance is negligible, and the only horizontal force is kinetic friction exerted by the ice on the puck. Which of the following correctly describes the directions of the puck’s velocity v and acceleration a while the puck is slowing?
(a) v points to the right and a points to the right
(b) v points to the right and a is zero
(c) v points to the right and a points to the left
(d) v points to the right and a points downward