Force Physics Example 2

Follow the full solution, then compare it with the other examples linked below.

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Two forces act on an object:

F_1 = 15 \text{ N}

to the right and

F_2 = 8 \text{ N}

to the left. What is the net force on the object?

1
Define positive direction as right. So $F_1 = +15 \text{ N}$ and $F_2 = -8 \text{ N}$ .
2
Calculate the net force: $F_{\text{net}} = F_1 + F_2 = 15 + (-8) = 7 \text{ N}$
3
The net force is $7 \text{ N}$ to the right.

Answer

F_{\text{net}} = 7 \text{ N to the right}

When multiple forces act on an object, they combine as vectors. The net force determines the overall effect on the object's motion.

About Force

A push or pull interaction between two objects that can cause a change in an object's velocity (speed or direction), described as a vector quantity.

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