Hockey Pucks

Hockey is a game full of physics.

My brother likes to play goalie when we are playing hockey. I'm not very good at shooting, but it's fine. I wanted to see how much force the puck had when it hit the net. I explored other aspects of the puck as well.

Here's the scenario: 

I shoot the puck. Using video analysis (logger pro, not pictured), I found the velocity of the puck. From there, I could find the acceleration, momentum and force of the puck when it hit the net. For fun, I also calculated the force of an NHL puck. 

Video:

Calculations:

velocity of puck (v): 14.6 m/s
mass of puck (m): .16kg
momentum of puck (mv): 2.33kg/m/s
acceleration of puck (v'): 30.4m/s^2
force hitting my brother (ma): 4.86N

This is why I run and don't play hockey.

NHL Version: estimated

velocity of puck (v): 47 m/s

mass of puck (m): .16kg

momentum of puck (mv): 7.52kg/m/s

acceleration of puck (v'), assuming it takes .5 seconds to reach the goalie and accelerates at a constant rate: 94m/s^2

force hitting goalie (ma): 15N

Honestly, 15N doesn't seem like that much, but the puck is so small that it's a lot of force for one small area on the goalie. My force on the puck is about 1/3 of the force of an NHL star.