Problem 6-7 Friction coefficient - Part 2 - C
A hockey puck travels \(33\; m\) along an ice rink before coming to rest. Its initial speed was \(11\;m/s\).
(a) What is the magnitude of the acceleration of the puck?
(b) What is the coefficient of kinetic friction between the puck and the ice?
Accumulated Solution
\(v_x{^2} = v_{0x}{^2} + 2a_xx \\ a_x = -1.83\; m/s^2 \; \text{ (answer to (a))}\)
No. The acceleration is a vector so it can have either sign in one-dimensional motion.