You are driving at 30m/s and hit your breaks, skidding to a stop. The static coefficient...
You are driving at 30m/s and hit your breaks, skidding to a stop. The static coefficient of friction between your tires and the road is μs = 0.7. The mass of your car is 1500 kg.
a) What is your initial kinetic energy right before you hit the breaks?
b) What is the magnitude of the static friction force acting on the car?
c) Does the friction do positive or negative work on the car? Explain your reasoning.
d) Use the work-energy theorem to calculate how far you will skid before stopping.
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