a] (3pts.) The speed of the car at the point B. b] (3pts.) The normal force acting of the car at the point B A car moves down a roller coaster starting from point A at rest. There is no friction. The point A is at 2.0m from the ground level. The car goes inside a loop of radius 40.0 cm. The mass of the car is 0.3 kg. (Be careful with all the units!) A Ground Determine: a) (3pts.) The speed of the car at the point B