Homework Help: physcis

Posted by ericka on Monday, May 7, 2012 at 10:29pm.

What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.82?

physcis - Andrew, Monday, May 7, 2012 at 10:30pm
1. Fnet=ma=Fs
Fnet=ma=usFn
Fnet=ma=usmg
mass cancels
a=usg

Please stop reposting your question
physcis - ericka, Monday, May 7, 2012 at 10:38pm
well noone answered it and so i reposst it. thank you for your responnse but the last message was not needed.
physcis - Elena, Tuesday, May 8, 2012 at 1:31pm
The car moves forward by the reaction force from the ground, produced due to friction between tires and road. According to the Newton’s 3rd law
F12 = F21
F(net)max = F(friction)max
m•a = k• m•g
a = k• g = 0.82•9.8 = 8.04 m/s^2

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