Calculating Coefficient of Friction for a Sliding Hockey Puck on Ice

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The discussion focuses on calculating the coefficient of friction for a hockey puck sliding on ice, given an initial speed of 20.0 m/s and a stopping distance of 115 m. The calculated acceleration is -1.8 m/s². The coefficient of friction can be determined using the formula: coefficient of friction (μ) = acceleration (a) / gravitational acceleration (g), where g is approximately 9.81 m/s². This results in a coefficient of friction of approximately 0.18.

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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 m before coming to rest,determine the coefficient of friction between the puck and ice.

I started solving the question by getting the acceleration (a=-1.8m/s^2) ,but I'm stuck to this point.
Please help..Thank you
 
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1.) What is the definition of the coefficient of friction?
2.) What is the relationship between acceleration and force?
 

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