4. A billiard ball rolls from rest down a smooth ramp that is 8.0 m long. The acceleration of the ball is constant at 2.0 m/s
1. What is the speed of the ball when it is hallway down the ramp?
1. What is the final speed of the ball?
ill. How long does the ball take to roll the first 4.0 m?
iv. How long does the ball take to travel the final 4.0 m?

Name two kinds of practical electric pumps.

Am i correct on these two physics questions?

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.