Question

1) Review Interactive Solution 2.33 in preparation for this problem. Suppose a car is traveling at +20.6 m/s, and the driver sees a traffic light turn red. After 0.421 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 5.00 m/s2. What is the stopping distance of the car, as measured from the point where the driver first notices the red light?

2) A VW Beetle goes from 0 to 41.0 mi/h with an acceleration of +2.35 m/s^2.

(a) How much time does it take for the Beetle to reach this speed?

(b) A top-fuel dragster can go from 0 to 41.0 mi/h in 0.800 s. Find the acceleration (in m/s2) of the dragster.

Answer 1

1)

2)

(a)

(b)