(a) Find the acceleration of the car. a= -2.386 m/s2 Correct: Your answer is cor
ID: 1279876 • Letter: #
Question
(a) Find the acceleration of the car. a= -2.386 m/s2 Correct: Your answer is correct.
(b) How long does the car take to skid to a stop if its initial speed is 30 mph (13 m/s)? answer in meters Incorrect: Your answer is incorrect.
ONLY NEED HELP WITH PART B!!!!!!!!!
A car is traveling down a hill that makes an angle of 15 with the horizontal. The driver applies her brakes, and the wheels lock so that the car begins to skid. The coefficient of kinetic friction between the tires and the road is Mu k = 0.52 (a) Find the acceleration of the car. a= -2.386 m/s2 Correct: Your answer is correct. (b) How long does the car take to skid to a stop if its initial speed is 30 mph (13 m/s)? answer in meters Incorrect: Your answer is incorrect. ONLY NEED HELP WITH PART B!!!!!!!!!Explanation / Answer
b) If by how long you mean time, it's:
v = v? + at
t = (v - v?) / a
= (0 - 13m/s) / -2.386 m/s
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