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sodr2
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How do you know when to use the sum of all forces acting on a body compared to the sum of all tourques acting on a body when solving for these types of questions involving ladders, hanging signs, etc...
from here i am stuck...i could use tourque and put my pivot point on where the rope and gravity intersects, but then I am left with the force of the floor [up] and the force of the wall...
sodr2 said:from here i am stuck...i could use tourque and put my pivot point on where the rope and gravity intersects, but then I am left with the force of the floor [up] and the force of the wall...
Torque is a measure of the rotational force on an object. It is calculated by multiplying the force applied to an object by the distance from the pivot point to the point where the force is applied.
In order for an object to be in static equilibrium, the sum of all the forces acting on it must be equal to zero and the sum of all the torques acting on it must also be equal to zero. This means that the object will not be accelerating and will remain in a fixed position.
Clockwise torque is a rotational force that causes an object to rotate in a clockwise direction, while counterclockwise torque causes an object to rotate in a counterclockwise direction. The direction of the torque is determined by the direction of the applied force and the direction of the lever arm.
The lever arm is the distance between the pivot point and the point where the force is applied. The longer the lever arm, the greater the torque will be. This means that a smaller force can produce the same torque as a larger force if the lever arm is longer.
Some examples of torque and static equilibrium in everyday life include using a wrench to loosen a bolt, balancing on a seesaw, or pushing open a door. In all of these situations, the forces and torques are balanced, allowing for stable and controlled movement.