the table below shows the effect conditions on a car stopping distance. in witch condition was the car travelling most slowly

Car 5

Explanation:

Higher speeds mean higher braking times so the car with the highest braking distance was travelling the the fastest and the car with the lowest braking distance was traveling the slowest.

Braking distance = Stopping distance - Thinking distance.

Car                                   Braking distance

 1                                                38

 2                                               50                = 65 - 15

 3                                               75

 4                                               75

 5                                               14                = 23 - 9

Car 5 had the lowest braking distance so was going the slowest.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me