A bowling ball is placed at the top of an incline and released. You run two different trials.
For the first trial, the incline provides friction.
For the second trial, the incline is frictionless.
You measure the time for both trials. The second trial has a shorter time meaning that the bowling ball was moving faster at the bottom of the ramp without friction.
Which statements below explains this discrepancy in the times?
Select TWO answers.