Question 3 (1 point) d Saved A cart is released from rest from the top of an inclined ramp. Ignoring friction, which of the following is the best representation of the x-position vs. time graph for the cart as it rolls down the ramp. Assume x = 0 is at the top of the ramp, t = 0 occurs at the moment the cart is released, and the +x axis points directly down the ramp