Where is a contact force labeled on a diagram of a pivoted beam?

In summary, moments are a measure of the turning effect of a force and are calculated by multiplying the force applied by the perpendicular distance from the point of rotation to the line of action of the force. They are crucial in understanding equilibrium and rotational motion, and are used in designing structures and machines. Moments differ from forces in that they specifically relate to rotational motion, while forces can cause both linear and rotational motion. Moments can also affect the stability of an object, with a larger moment potentially decreasing stability by causing rotation or toppling.
  • #1
Josielle Abdilla
50
4
Hi...What is a contact force and where is it labelled in a diagram showing a beam pivoted?
 
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  • #2
A contact force is something like friction, normal force, tension that are exerted by one object on another through contact. It is drawn as an arrow with its tail at the point where the contact is made. The direction and the size of the arrow depend on the details of the situation. The label usually appears somewhere near the tip of the arrow. Does that answer your question?
 

What are moments?

Moments are a measure of the turning effect of a force. They are also known as torque or rotational force.

How are moments calculated?

Moments are calculated by multiplying the force applied by the perpendicular distance from the point of rotation to the line of action of the force.

What is the significance of moments in physics?

Moments are crucial in understanding the equilibrium of an object and its rotational motion. They are also used in designing structures and machines.

What is the difference between moments and forces?

Moments and forces are both types of contact forces, but moments are specifically related to rotational motion whereas forces can cause linear or rotational motion.

How do moments affect stability?

Moments can affect the stability of an object by causing it to rotate or topple. A larger moment will result in a greater turning effect and potentially decrease stability.

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