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A driver's manual states that a driver traveling at 48 km/h and desiring to stop as quickly as possible travels 10 m before the foot reaches the brake. The car travels an additional 21 m before coming to rest. (a) What coefficient of friction is assumed in these calculations? (b) What is the minimum radius for turning a corner at 48 km/h without skidding?

A driver's manual states that a driver traveling at 48 km/h and desiring to stop as quickly as possible travels 10 m before the foot reaches the brake. The car travels an additional 21 m before coming to rest. (a) What coefficient of friction is assumed in these calculations? (b) What is the minimum radius for turning a corner at 48 km/h without skidding?

Grade:11

1 Answers

Kevin Nash
askIITians Faculty 332 Points
7 years ago
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Therefore the acceleration experienced by the car is -4.23 m/s2 , and the negative sign indicates the acceleration is opposite to the direction of velocity vector of car. 234-1531_1.PNG
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