Question: Two people are pushing a car. One person is pushing with a force of 450 N and the other person is pushing with a force of 300 N. What information is needed to determine the net force applied to the car by the people?

  Options: 
 A. the direction of the road
 B. the direction of the forces
 C. the weight of the two people
 D. the weight of the automobile
Answer: B