Acar starts from rest and speeds up at 2.2m/s^2 after the traffic light turns green , how far will it have gone when it os traveling at 18m/s?
plz write down the steps and the equation you used and thx < 3

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