A hockey puck of mass 0.20 kg slides on a frictionless horizontal ice surface with an…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A hockey puck of mass 0.20 kg slides on a frictionless horizontal ice surface with an initial velocity of 10 m s⁻¹ due east. A steady 4 N force acts on the puck for 3 s in a direction due north.
Solve the following.
(i) Determine the change in linear momentum of the puck during the 3 s interval, expressing your answer as a vector in unit-vector form.
(ii) Calculate the magnitude and direction of the puck’s velocity immediately after the force ceases to act.