Question

Now determine ∑F 1y , the sum of the y components of the forces acting on block 1. Take forces acting upward as positive.

a)F 1y=30
Nb)F1y=−30N
c) F1y=20N
d) F 1y =−20N

Answer 1

The sum of the y-components of the forces acting on block 1 is F1y=30N.

Step-by-step explanation:

In this problem, we are asked to find the sum of the y-components of the forces acting on block 1. We are given the options a) F1y=30N, b) F1y=−30N, c) F1y=20N, and d) F1y=−20N. Since we are taking forces acting upward as positive, we can eliminate options b) and d) as they indicate downward forces. Therefore, the correct answer is option a) F1y=30N.