What is the Coefficient of Kinetic Friction for a Puck Sliding on Ice?

AI Thread Summary
To determine the coefficient of kinetic friction for a puck sliding on ice, the problem involves a 0.5 kg puck that slides 115 m before stopping from an initial speed of 20 m/s. The gravitational force acting on the puck is calculated to be 4.9 N. To find the coefficient of kinetic friction (uk), one must apply kinematic equations, force relations, and fundamental physics laws. The discussion highlights a need for clarification on how to approach the problem using these equations. Understanding the relationship between friction, acceleration, and displacement is crucial for solving this physics problem.
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Homework Statement


A 0.5kg puck on a frozen pond is given an initial speed of 20m/s. If the puck always remains on the ice and slides 115m before coming to rest, determine the coefficient of kinetic friction between the puck and ice.


Homework Equations


mass= 0.5kg
force of gravity= mass x gravity = (0.5)(9.8)= 4.9N
displacement= 115m
V1= 20m/s
V2= 0m/s
uk= ?



The Attempt at a Solution



I have no idea where to start.
 
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You need three more equations: one kinematic equation, one force relation, and one fundamental law of physics.
 
I don't understand, could you elaborate a little please ?
 

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