Dory said:http://img135.imageshack.us/img135/4664/helpo.jpg
Look at the equation at "sum of all forces on y axis" and please tell me: How the heck did 0.4Na -mg = 0 turn into Na = 2.5m g?
Hint: 1/0.4 = ?Dory said:Look at the equation at "sum of all forces on y axis" and please tell me: How the heck did 0.4Na -mg = 0 turn into Na = 2.5m g?
Static equilibrium refers to a state in which an object is at rest and its net force and net torque are both equal to zero. This means that the object is not moving and it is not rotating. On the other hand, dynamic equilibrium refers to a state in which an object is moving at a constant velocity and its net force and net torque are both equal to zero. The main difference between the two is that in static equilibrium, the object is at rest, while in dynamic equilibrium, the object is in motion.
Torque is a measure of rotational force, and it is directly related to static equilibrium. In order for an object to be in static equilibrium, the net torque acting on the object must be equal to zero. This means that the clockwise and counterclockwise torques must balance each other out, resulting in no overall rotational force on the object.
There are several factors that can affect an object's static equilibrium, including its mass, shape, and center of gravity. Changing the position of any of these factors can cause the object to no longer be in static equilibrium, and it may begin to move or rotate.
In order to calculate the net torque acting on an object in static equilibrium, we need to consider the individual torques acting on the object. The formula for torque is T = F x d, where T is torque, F is the force acting on the object, and d is the distance from the pivot point to the point where the force is applied. We can calculate the clockwise and counterclockwise torques and then add them together to determine the net torque.
No, it is not possible for an object to be in both static and dynamic equilibrium at the same time. An object can only be in one state of equilibrium at a time. If an object is in motion, it cannot be at rest, and therefore it cannot be in static equilibrium. Similarly, if an object is at rest, it cannot be in motion, and therefore it cannot be in dynamic equilibrium.