A1,200-kg car is pulling a 315-kg trailer. together, the car and trailer have an acceleration of 2.10 m/s2 in the positive x-direction. neglecting frictional forces on the trailer, determine the following. (indicate the direction with the sign of your answer. assume forward motion is along the positive x-axis and upwards is along the positive y-axis. assume the trailer's weight is entirely supported by it's own ) determine the net force on the car.

The net force on the car is equal to 661.5 N.

Why?

We need  to calculate the net force on the car and not the exerted by the trailer on the car. However, if we were asked to calculate the force exerted on the car by the trailer, we must remember that  ar is pulling (and moving) the trailer, the net force exerted by the car on the trailer will be the same (with opposite direction) that the force exerted by the trailer on the car.

So, calculating we have:

Hence, we have that the net force on the car is equal to 661.5N.

Have a nice day!

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

scientific laws are the result of testing theories and proving them to be facts.