A driver has a reaction time of 0.55 second. If he is driving a car at 12 m/s, find the thinking distance while he observes a danger. b) If the stopping distance is 20 m, find the braking distance.

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

Answer(b) 60 miles per hour;

Ithink the answer is c. make unnecessarily  wide gestures