Coefficient of kinetic friction of a hockey puck

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SUMMARY

The discussion focuses on calculating the coefficient of kinetic friction for a hockey puck sliding on ice. Given an initial speed of 20.0 m/s and a sliding duration of 115 minutes before coming to rest, participants emphasize using Newton's Second Law to determine the necessary acceleration. The net force can be derived from this acceleration, although the mass of the puck is not required for the final calculation of the coefficient of kinetic friction.

PREREQUISITES
  • Understanding of Newton's Second Law
  • Basic knowledge of friction coefficients
  • Familiarity with kinematic equations
  • Ability to perform unit conversions (e.g., minutes to seconds)
NEXT STEPS
  • Calculate the acceleration of the hockey puck using kinematic equations
  • Research the formula for the coefficient of kinetic friction
  • Explore examples of friction calculations in physics
  • Learn about the effects of surface conditions on friction coefficients
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the dynamics of motion and friction in sports contexts.

Joshw17_15
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A hockey puck on a frozen pond is given an initial speed of 20.0 m/s. If the puck always
remains on the ice and slides 115 min before coming to rest, determine the coefficient of
kinetic friction between the puck and ice.
]
 
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Welcome to PF,

Just use the initial velocity and deceleration time to figure out what the acceleration must have been.

From Newton's Second Law, you can use the acceleration to determine the net force. Of course, there is an unknown (mass of puck) but it should not be required in the end.

EDIT: PLEASE use the homework help posting template (the one you deleted) in the future, and show your work! We need to see at least what attempts you've made on the problem.
 

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