A 990 kg car is pulling a 290 kg trailer. Together, the car and trailer have an acceleration of 2.17 this2 in the forward direction. Neglecting frictional forces on the trailer, determine the following. (Indicate the direction with the sign of your answer. Take the forward direction to be positive.) (a) the net force on the car S N (b) the net force on the trailer S N (c) the force exerted by the trailer on the car : N (d) the resultant force exerted by the car on the road direction S (below the horizontal from the forward direction)