An ice hockey puck is sliding over a frictionless horizontal surface with a constant velocity of vo = 10.2 m/s.Find the velocity of the puck after it passes a rough area of length L 6 m and with the kinetic frictioncoefficient u = 0.33 as shown below. Hint: the mass of the puck is not needed, you can either calculateeverything per unit of mass or, if it helps, take m 160 grams.%3D%3D%3D%3DmVoLThe steps to follow: (1) find the initial KE of the puck; (2) find the work done by the friction force (shouldbe negative); (3) find the final kinetic energy as KE; = KE; + W, meaning that some of the initialkinetic energy is lost due to the work done by friction; (4) from the final KE find the final speed.The final speed of the puck, Vf =7.28X Units m/s%3DIf the initial speed of the puck is not high enough the puck will get stuck in the rough area. At whatminimal initial speed should the puck move to barely make it through the rough area?The minimal initial velocity, Vmin= 38.84 X Units m/sQuestion Help: Message instructor D Post to forumSubmit Question

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An ice hockey puck is sliding over a frictionless horizontal surface with a constant velocity of vo = 10.2 m Find the velocity of the puck after it passes a rough area of length L 6 m and with the kinetic friction coefficient u = 0.33 as shown below. Hint: the mass of the puck is not needed, you can either calculate everything per unit of mass or, if it helps, take m 160 grams. Vo

An ice hockey puck is sliding over a frictionless horizontal surface with a constant velocity of vo = 10.2 m Find the velocity of the puck after it passes a rough area of length L 6 m and with the kinetic friction coefficient u = 0.33 as shown below. Hint: the mass of the puck is not needed, you can either calculate everything per unit of mass or, if it helps, take m 160 grams. Vo

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

An ice hockey puck is sliding over a frictionless horizontal surface with a constant velocity of vo = 10.2 m/s.
Find the velocity of the puck after it passes a rough area of length L 6 m and with the kinetic friction
coefficient u = 0.33 as shown below. Hint: the mass of the puck is not needed, you can either calculate
everything per unit of mass or, if it helps, take m 160 grams.
%3D
%3D
%3D
%3D
m
Vo
L
The steps to follow: (1) find the initial KE of the puck; (2) find the work done by the friction force (should
be negative); (3) find the final kinetic energy as KE; = KE; + W, meaning that some of the initial
kinetic energy is lost due to the work done by friction; (4) from the final KE find the final speed.
The final speed of the puck, Vf =7.28
X Units m/s
%3D
If the initial speed of the puck is not high enough the puck will get stuck in the rough area. At what
minimal initial speed should the puck move to barely make it through the rough area?
The minimal initial velocity, Vmin
= 38.84 X Units m/s
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