posted by Mike on .
A player strikes a hockey puck giving it a velocity of 47.673 m/s. The puck slides across the ice for 0.175 s after which time its velocity is 46.473 m/s.
The acceleration of gravity is 9.8 m/s2 . The mass of the puck is 185 g.
If the puck strikes the goalie’s pads and stops
in a distance of 4.39 cm, what average force is
exerted on the pads?
Answer in units of N.
I wonder what the velocity of the puck was at the initial contact with the pad? If you assume it is 46.473m/s, then
and you solve for force (mass is in kg)