In the following video, a cart is released from rest on an inclined track. A bumper on the front of the cart allows it to travel back up the track

after striking a wall at the end of the track. The mass of the cart is 0.5 kg. 1a) Determine the acceleration of the 0.5 kg cart between points A and B. 1b) Describe what the cart is doing between points A and B. 1c) Determine the net force acting on the 0.5 kg cart between points A and B. 1d) Describe the direction of the net force acting on the cart between points A and B.