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A slap shot from the blue line (18.3m from the goal) is one of the most exciting plays in a hockey game.
During the early 2000's, the NHL ( the US Professional Hockey League) was concerned about the lack of goals being score. The defensive players had become too big and quick which caused a decrease in scoring. One of the proposals given to the NHL was to decrease the mass of the puck by 15%.
The current NHL puck.
Mass: 170 g
Diameter: 7.5 cm
Rule 306 | Puck
Rule 306 | Puck
(a) The puck shall be made of vulcanized rubber or other approved material, one inch thick and three inches in diameter and shall weigh between 5 ½ ounces (155.9 g) and 6 ounces (170.0 g) and be black in color.
As part of their research, Patrick Kane was given 20 pucks each of various masses. The speed of the puck when it hit the net was collected using a radar gun. A graph of the data is shown at the left.
From the gif to the left, diagram the forces acting on the puck while it is being struck by #88 Patrick Kane formerly of the Chicago Blackhawks.
With the current puck, Kane's fastest slap shot has been measured at 180 km/h (50m/s). Suppose the new proposed puck were to be used, what effect would this new puck have on his fastest slap shot. Support your claim.
3. From the perspective of the following groups of people, using your knowledge/understanding of physics would you support the proposal of the new lighter puck?
1. Centers and Wings - Offensive players that account for most of the scoring in the league.
2. Goalies - They try to prevent goals from being scored. They stand in front of the net.
3. Defensemen - Regardless of gender, they interfere with the centers and wings to prevent scoring.
4. Fans / Spectators - They cheer on their favorite teams and players.
5. Coaches and Trainers - They prepare the players to play.
As a member of the rules committee, after hearing the arguments of the various groups, how would you rule on the change in puck proposal?
Other sports...
Other sports...
Choose a sport that uses a piece of equipment, this could range from an F1 car to a table tennis ball.
Make a claim how the game or sport would change if the minimum mass of the equipment changed, use N2L to support your claim.
After a review of Olympic sports, Azeem found that 85% of sports that used a piece of equipment, had a minimum mass (as opposed to a maximum mass). Using N2L as a guide, explain why a majority of sports would require a minimum mass for the equipment.
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