Help with homework (kinetic friction)

Thread starter jwang023
Start date Feb 10, 2010
Tags

Friction Homework Kinetic friction

AI Thread Summary

A baseball player sliding into third base at 3.6 m/s experiences kinetic friction with a coefficient of 0.41. To determine how far the player slides before coming to rest, the work-energy theorem can be applied, using the equations for frictional force and acceleration. The frictional force is calculated as fk = mu * N, where N is the normal force. By equating the work done by friction to the change in kinetic energy, the distance can be derived. This approach effectively combines physics principles to solve the problem.

Feb 10, 2010

jwang023

Homework Statement

A baseball player slides into 3rd base with an intitial speed of 3.6 m/sec. If coefficient of kinetic friction between the player and the ground is 0.41, how far does the player go before rest?

Homework Equations

Fx= -fk= ma
fk= mu sub k *N

The Attempt at a Solution

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Feb 10, 2010

tiny-tim

Science Advisor

Homework Helper

Hi jwang023!

Hint: use work done and the work-energy theorem

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