It means, how far to the right of the right support can the boy stand before there is zero reaction at the left support. IOW, when will the board become as see-saw?Sarah00 said:Homework Statement
2. Homework Equations
Net Force = 0
Net Torque = 0
The Attempt at a Solution
I know how to deal with these problems. My question is: What the word 'minimum' means here? A zero normal force over the second support point?
Static equilibrium is a state in which the net force and the net torque acting on an object are both equal to zero. This means that the object is not moving and is not rotating.
Dynamic equilibrium refers to a state in which the net force acting on an object is equal to zero, but the object is still moving at a constant velocity. In contrast, static equilibrium means that the object is not moving at all.
The equation for net force in static equilibrium is ΣF = 0, where ΣF represents the sum of all the forces acting on the object. In order for an object to be in static equilibrium, this equation must be satisfied.
Torque is a measure of the rotational force acting on an object. In order for an object to be in static equilibrium, the net torque acting on the object must also be equal to zero. This means that the object is not rotating.
Some examples of static equilibrium in everyday life include a book sitting on a table, a ladder leaning against a wall, and a person standing still on the ground. In each of these situations, the net force and net torque acting on the object are equal to zero, resulting in static equilibrium.