On vacation, your 1200- car pulls a 540- trailer away from a stoplight with an acceleration of 1.50. What is the net force exerted by the car on the trailer?
You need dimensions with your numbers.
F = M a
will solve your problem. You have to assume that there is a negligible friction force where the trailer tires meet the road.
The car's mass does not matter. The trailer's mass does matter.posted by drwls