Finding Friction Coefficient on Ice | Puck Velocity and Forces Question

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To find the friction coefficient of a puck sliding on ice, the initial velocity is 5 m/s, and the puck eventually stops. In the forces diagram, friction acts in the opposite direction of motion, and if no other forces are applied, the net force is solely due to friction. The equation used is net force equals the puck's force minus friction force, equating to mass times acceleration. Assuming the puck's force is zero after being hit is correct, as no additional forces act on it post-impact. Understanding this concept is crucial for accurately calculating the friction coefficient.
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forgot some details to the question but that's ok because i have a general one: a puck is hit with an initial velocity of 5 m/s and comes to a stop some time later. the question is find the friction coefficient of the ice and puck.

anyways, when making a forces diagram, i know the friction points back but does anything point forward? is there a force pushing it (after its been hit) and if so, how do you find it?

what i did to solve it was say the net force equals Fpuck - Ffriction = ma

they gave the mass and i solved for acceleration using regular kinematics but i had to assume Fpuck was 0. is that true? the answer came out correct but i don't know why the Fpuck=0.
 
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and boy am i glad i didnt forget the p...
 
dnt said:
forgot some details to the question but that's ok because i have a general one: a puck is hit with an initial velocity of 5 m/s and comes to a stop some time later. the question is find the friction coefficient of the ice and puck.

So far so good.

anyways, when making a forces diagram, i know the friction points back but does anything point forward? is there a force pushing it (after its been hit) and if so, how do you find it?

If it isn't being pulled, pushed, attracted by a magnet, etc then there is no force other than friction acting in the direction of motion.

they gave the mass and i solved for acceleration using regular kinematics but i had to assume Fpuck was 0. is that true? the answer came out correct but i don't know why the Fpuck=0.

It is correct, for the reason given above.
 
excellent. thanks.
 

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