How Far Will a Puck Slide with Friction?

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Homework Help Overview

The discussion revolves around a physics problem involving a puck sliding on a horizontal surface, subject to friction. The original poster presents a scenario where a force of friction acts on the puck, and they seek to determine the distance it travels before coming to rest, given its initial velocity.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • The original poster attempts to calculate the distance using various formulas but expresses difficulty in arriving at the correct solution. Some participants question the validity of the methods used, particularly regarding the assumptions made about constant velocity.

Discussion Status

The discussion is ongoing, with participants providing feedback on the original poster's attempts. There is a focus on clarifying the approach taken and addressing potential misunderstandings in the calculations. No consensus has been reached yet, and further exploration of the problem is encouraged.

Contextual Notes

Participants note that the original poster must provide detailed attempts to facilitate assistance, as simply stating attempts without elaboration limits the guidance that can be offered.

Anuj Agarwal
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Homework Statement


A force of friction of 3.2N acts on a 1.1Kg puck while it is sliding along a horizontal surface. If the initial velocity of the puck was 7.5 m/s, how far will the puck travel before coming to rest?

Homework Equations

The Attempt at a Solution


The answer is 9.7M. Tried multiple time with different formulas but unable to derive at solution.
 
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Hi @Anuj Agarwal, Welcome to Physics Forums.

You need to show us at least one of your attempts in detail or your thread will be deleted. Just saying you tried and failed does not give us any basis upon which to help you.
 
Sorry. Here is my try: F =mxa hence a = f/m=3.2/1.1=2.9
A=v/s, hence s=v/a =7.5/2.9=2.58
Distance = velocityxtime = 7.5x2.58=19.3 m
 
The last line is wrong. This would only be true if the velocity were constant. The fact that your answer is twice as big as it should be should give you a clue.
 

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