- #1
phee
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Homework Statement
A bus passenger has her laptop sitting on the flat seat beside her as the bus, traveling at 10.0 m/s, goes around a turn with a radius of 25.0 m. What minimum coefficient of static friction is necessary to keep the laptop from sliding?
Given:
V = 10 m/s
r = 25.0 m
Homework Equations
Fc = mv ^ 2 / r
f = Us x Fn
The Attempt at a Solution
Fs = Force of static frictionSo far I have:
Fc = mv^2 / r
Fs + mg = mv^2 / r
Fs = v^2 / r - g
Fs = 10 ^ 2 / 25 - 9.8
Fs = -5.8I don't think I am on the right track with this as my Fs is a negative. Any hint to the proper direction would be much appreciated. Thank you