Question

Can you please help - the answer I got so far is 7.624 but when I enter it in my homework in Quest, it i stating that this answer is wrong. Can you please let me know what the correct answer is? You are driving at the speed of 33.5 m/s (74.9534 mph) when suddenly the car in front of you (previously traveling at the same speed) brakes and begins to slow down with the largest deceleration possible without skidding. Considering an average human reaction, you press your brakes 0.549 s later. You also brake and decelerate as rapidly as possible without skidding. Assume that the coefficient of static friction is 0.778 between both cars’ wheels and the road. The acceleration of gravity is 9.8 m/s 2 . Calculate the acceleration of the car in front of you when it brakes. Answer in units of m/s 2 .

Answer 1

Answer:

-7.04

Explanation:

9.8 multipled by -0.719 b