A different scaffold that weighs 400 N supports two painters, one 500 N and the other 400 N. The reading in the left scale is 800 N. What is the reading in the righth and

scale?

The total upward force = total downward force

800N + X = 400 N + 500N + 400N
800N+X=1300N
X=1300-800
x=500N

upward net force= downward net force

800N+X=1300N
X=500N

hhbh

To find the reading in the right-hand scale, we need to consider the forces acting on the scaffold.

First, let's list the known forces:

1. Weight of the scaffold (given): 400 N
2. Weight of the first painter (given): 500 N
3. Weight of the second painter (given): 400 N
4. Reading in the left-hand scale (given): 800 N

Now, let's set up an equation to represent the forces in equilibrium:

Total upward force = Total downward force

The total upward force comes from the reading in the left-hand scale, which is 800 N.

The total downward force comes from the weight of the scaffold, first painter, and second painter.

Total downward force = Weight of scaffold + Weight of first painter + Weight of second painter

Total downward force = 400 N + 500 N + 400 N = 1300 N

Since the scaffold is in equilibrium, the total upward force should equal the total downward force.

800 N = Total downward force

Total downward force = 800 N

Now, to find the reading in the right-hand scale, we subtract the total downward force from the total weight of the scaffold and the painters.

Reading in the right-hand scale = Total weight - Total downward force

Reading in the right-hand scale = (Weight of scaffold + Weight of first painter + Weight of second painter) - Total downward force

Reading in the right-hand scale = (400 N + 500 N + 400 N) - 800 N

Reading in the right-hand scale = 1300 N - 800 N

Reading in the right-hand scale = 500 N

Therefore, the reading in the right-hand scale is 500 N.

800+x-1300-400=0

800+x-1700=0
x=900