You swim across a 100m wide river that is flowing 5 m/s. You can swim at a rate of 2 m/s . How far down the shore are you when you get to the other side ?

6/12=1/2

step-by-step explanation:

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