An auto weighing 3000 newtons has a forward drive force of 1000 newtons. Air resistance on the car is 100 newtons, and road resistance is 100 newtons. The auto moves along a straight level road. The net force on this auto is
A) 1000 newtons forward.
B) 1200 newtons forward.
C) 800 newtons backward.
D) 800 newtons forward.
E) 200 newtons backward.

Question

Quizplus · Accepted Answer

The net force is calculated by subtracting the total resistance forces (air resistance + road resistance) from the forward drive force: 1000 N - (100 N + 100 N) = 800 N forward.

An Auto Weighing 3000 Newtons Has a Forward Drive Force