Slap shot. In professional hockey, a slap shot is a type of shot in which a player literally “slaps” the puck with his stick. The puck may start with a very low speed and can leave the stick with a speed as high as 45 m/s (100 mi/h). Assuming the puck starts from rest, what is the average force exerted by the hockey stick on the puck? A hockey puck has a mass of about 0.17 kg.