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chaotiiic
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Homework Statement
the driver of a 1500 kg car traveling at 12.5 m/s slams on the brakes, locking the wheels, and bringing the car to a stop. If the coefficient of friction is .735, what is the braking distance of the car?
Homework Equations
W = K_f - K_i
friction force
The Attempt at a Solution
K_f = (1/2)(1500)(12.5)^2 = 117187.5
K_i = 0
W = 117187.5
F_n = 14700
friction force = 14700 * .735 = 10804.5
distance = 117187.5/10804.5 = 10.84m
correct?