Question Part
Points
Submissions Used
A hockey puck is hit on a frozen lake and starts moving with a speed of 12.90 m/s. Exactly 6.7 s later, its speed is 6.70 m/s.
(a) What is the puck's average acceleration?
Incorrect: Your answer is incorrect.
m/s2
(b) What is the coefficient of kinetic friction between the puck and the ice?