Question

A 15 N force and a 45 N force act on in object in opposite directions. What is the net force on the object?

Answer 1

30N in the direction the 45N acts.

Step-by-step explanation:

Fnet = F1 + F2 (the vector sum of the forces)

Assigning a positive direction to the 45N force and a negative direction to the 15N force gives:

Fnet = 45 - 15

Fnet = 30N

Since the answer is positive, it is in the direction the 45N force acts.