00:01
In this exercise, we have a diagram that shows two ropes attached to a large crate.
00:08
We're going to suppose that rope a exalts a force of negative 700, 510 newtons on the grid and rope b exalts a force of 880 newtons on the crit.
00:27
The crate weighs 1 ,250 250 newtons.
00:36
What is the net force acting on the crate? now there are components, there are forces and their components.
00:47
So the weight of the crit is one of the forces.
00:53
And the weight of the crate is acting downwards.
01:00
And so it doesn't have a horizontal component.
01:05
So it can be written as follows.
01:07
It's a zero horizontally and 1 ,250 neutrons vertically.
01:18
But since it's downward force, we put a negative sign there.
01:24
Now the net force has two components, the x component and the y component.
01:33
We need to combine all the x components.
01:37
So we have negative 700 plus 880...