Which of the following examples describes an increase in potential energy?

a bicycle going down a hill

a paint can being carried up a ladder

a basketball falling through a net

a roller coaster moving down the track

which of the following examples describes an increase in potential energy?

A) A paint can being carried up a ladder.

Hope that helps and good luck~

~May

(At first i put A because i thought it said "a bicycle going up a hill"

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