Astudent must design an experiment to determine the acceleration of a cart that rolls down a small incline after it is released from rest. the student has access to a timer, a meterstick, and a slow-motion camera that takes a photograph every 160 of a second. the angle that the incline makes with the horizontal is unknown, and the length of the incline is unknown. which of the following procedures could the student use to determine the cart's acceleration? select two answers.

a)use the meterstick to measure the vertical height of the incline, and use the timer to record the time it takes for the cart to travel down the incline.
b)use the timer to record the time it takes the cart to travel alongside a meterstick that is attached to the incline.
c)use the slow-motion camera to film the cart as it rolls down the incline alongside a meterstick that is attached to the incline.
d)use the slow-motion camera to film the cart as it rolls down the incline alongside a timer that is attached to the incline.