A.You are driving in your car (mass 1,600 kg) along a level highway at a speed o

Question

A.You are driving in your car (mass 1,600 kg) along a level highway at a speed of 30 m/s, when all of a sudden you realize all the cars in front of you have come to a stop. Afterwards, you press on the brakes and your tires start skidding. The weather happens to be sunny, and the roads are in dry conditions. Find the stopping distance you require to come to a complete stop without slamming into the car in front of you.

B. What happens to that stopping distance if it is raining and the roads are wet?

Explanation / Answer

V^2 - u^2 =- 2*mue*g*s1

0 - 30^2 = -2*mue*9.8*s1

s1 = 900/19.6mue = 45.918/u m

on rainy day mue decreases

so distance increases

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