Shot Velocity Question
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06-17-2010, 07:28 PM
Giroux tha Damaja
Join Date: Apr 2009
Location: Mount Holly, NJ
Originally Posted by
F= ma is only applicable in a theoretical closed system, but you've gotta factor air resistance in this one. Yes your hypothesis on mass being inversely proportional to acceleration is correct but he's asking for puck VELOCITY/Speed and not acceleration, a lighter puck would probably accelerate off a shot faster, but its terminal velocity (maximum speed) would be less that of a heavier puck (depending how much heavier), whose greater momentum (momentum = mass x velocity) would 'push it thru' air resistance easier. But again, this is all theoretical of course
So in English, it is easier (takes less force) to shoot (accelerate) an inline puck. So if you gave a guy a two pucks, he probably shoots the inline puck harder. The difference in speed between the two would probably decrease as the stiffness of the stick and strength of the shooter increased.
You comment on the terminal velocity of the puck isn't really very relevant, since the puck wouldn't be under a constant accelerative force. So it's not like it would continuously gain speed up to the point where the force of drag = the force of acceleration.
The terminal velocity of a puck falling downwards under the influence of gravity is probably ~60mph, so I would imagine the terminal velocity under the kind of acceleration it gets from a stick would be in the high 3, low 4 digit range. But it's irrelevant since the motion of shooting doesn't provide steady acceleration, it's a pulse.
Last edited by Giroux tha Damaja: 06-17-2010 at
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