- #1
drkidd22
- 59
- 0
Homework Statement
See attached .pdf. Need to find the moment of force P about O. Force P in300N @ 30degree
Homework Equations
cosine law
sine law
The Attempt at a Solution
see attached. Please confirm I did this ok.
Yes. The x-component is Fcosθ, where θ is the angle with respect to the +x axis.drkidd22 said:Yeah I noticed that. I should use 60 degrees instead I guess
A moment of force is a measure of the tendency of a force to cause an object to rotate about a specific point or axis. It is also known as torque and is typically represented by the letter M.
Moment of force is calculated by multiplying the magnitude of the force by the perpendicular distance from the point of rotation to the line of action of the force. This distance is also known as the lever arm and is represented by the letter d.
The unit of measurement for moment of force is newton-meters (N·m) in the SI system. In the imperial system, it is measured in foot-pounds (ft·lb) or inch-pounds (in·lb).
In physics, the terms moment of force and torque are used interchangeably. However, in engineering, torque is often used to describe the rotational effect of a force on a specific object, while moment of force is used to describe the overall rotational effect of a force on a system.
The direction of moment of force is determined by the right-hand rule, where the thumb points in the direction of the force, and the curled fingers point in the direction of the rotation. The direction of the moment of force is perpendicular to both the force and the lever arm.