A 1.2 kg hockey puck slides across frictionless ice at 6.0 m/s due north
PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
A 1.2 kg hockey puck slides across frictionless ice at 6.0 m/s due north. It strikes the rink wall and rebounds, now moving 4.0 m/s due west. The puck is in contact with the wall for 0.020 s. What is the magnitude of the average force exerted on the puck by the wall?
(a) 360N
(b) 600N
(c) 430N
(d) 300N