Question

1. 16n 42n 21n 16n

Explanation:

Step1: Calculate horizontal net force

Horizontal forces: left (42N) and right (21N). Net force = 42N - 21N = 21N left.

Step2: Calculate vertical net force

Vertical forces: up (16N) and down (16N). Net force = 16N - 16N = 0N.

Step3: Find total net force

Vertical net force is 0, so total net force equals horizontal net force.

Answer:

21N to the left