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Symon
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Homework Statement
A car is traveling at 120km/h when it slams on the brakes. How long is the skid mark if the coefficient of friction is 0.62?(hint: convert km/h to m/s)
Given: initial velocity: 33.3m/s; final velocity: 0m/s; coefficient of fricition: 0.62
Homework Equations
μ = Ffriction/Fnormal; a= Force/mass
The Attempt at a Solution
Because of the absense of a time value, I'm finding it very difficult to use and displacement equation I've been given. I understand the the change in velocity (after being conversted to m/s) is 33.33m/s, but that's as far as I've gotten.
I was wondering is anyone could help me derive some other variable: such as the change in time, or the acceleration, with the given data.