Respuesta :
The way to calculate the sum of the forces in the y direction of an elevator; has been outlined below
Equilibrium of Forces
If you are in an elevator by itself, then the combined system of you and the elevator could have 3 possible situations which are;
- The elevator has no acceleration because it is standing still or moving with constant velocity.
- The elevator has an upward acceleration because it is accelerating upward, or decelerating while it's way down.
- The elevator has a downward acceleration since it is accelerating down, or decelerating while on the way up.
Now, in the vertical y direction, there are three forces namely;
- The force of gravity.
- A downward normal force.
- An upward force from the tension in the cable holding the elevator.
Thus, the sum of forces in the y-direction with the normal force acting on you from the elevator are any of the following;
N = mg; provided that the elevator is at rest or moving at constant velocity.
N = mg + ma; Provided that the elevator has an upward acceleration.
N = mg - ma; Provided that the elevator has a downward acceleration.
Read more about Sum of Forces at; https://brainly.com/question/20892645