Question

1. What is the net force? *

Answer 1

Net force is the vector sum of forces acting on a particle or body. The net force is a single force that replaces the effect of the original forces on the particle's motion. It gives the particle the same acceleration as all those actual forces together as described by the Newton's second law of motion.

I hope this helps you....

Answer 2

Answer:

net force between car and engine

=F'-F

=6000-1000=5000N

net force between trailer and car =0N

net force between trailer and engine =5000

total net force =0