The following four objects roll without slipping along a horizontal surface toward an incline. The velocity of the center of mass of each of the objects is the same at the bottom of the incline. Which of the objects will roll the greatest distance up the incline before coming to rest?

answer: b.

explanation:

c

explanation:

0.19 m/s and 0.45 m/s

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