A hockey puck is sliding across a horizontal stretch of rough ice with an initial speed of
PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power
Problem
A 2.0kg hockey puck is sliding across a horizontal stretch of rough ice with an initial speed of 6.0ms−1. The coefficient of kinetic friction between the puck and the ice is 0.15, and the frictional force is the only horizontal force acting on the puck once it is released.
Answer all parts below. Neglect air resistance.
(a) Calculate the magnitude of the frictional force acting on the puck.
(b) Determine the distance the puck travels before coming to rest.
(c) Compute the amount of thermal energy generated in the puck-ice system during the slide.
(d) If an identical puck with twice the mass but the same initial speed were released on the same ice, would the stopping distance be larger, smaller, or the same? Explain your reasoning without performing any additional calculations.