A girl rides her bike 1600 m west from her house. She goes into a store and starts riding back home. She rides 1100 m and stops to talk to a
friend. What is her displacement? *

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

no

explanation:

no i dont know how to solve this you should probably try to google the answer