Question

section 5.3

1. find the net force on each box.

a
b
50 n
60 n
20 n
25 n

Explanation:

Step1: Calculate net force for box A

Forces are in opposite directions. Subtract smaller from larger.
$$F_{netA}=60 - 20$$

Step2: Calculate net force for box B

Forces are in opposite directions. Subtract smaller from larger.
$$F_{netB}=50 - 25$$

Answer:

For box A: $40\ N$ (direction of the $60\ N$ force). For box B: $25\ N$ (direction of the $50\ N$ force).