Originally posted by einsteinian77
Im guessing the velocity would be expressed in frequency somehow.
To calculate the rotational velocity of an object around a fixed point, you need to know the distance from the object to the fixed point, as well as the angle and time it takes for the object to complete one full rotation. You can then use the formula: rotational velocity = (2π * distance) / (time * cos(angle)).
The unit of measurement for rotational velocity is radians per second (rad/s). This measures the angular speed of the object as it rotates around the fixed point.
Yes, the rotational velocity of an object around a fixed point can change if the distance from the object to the fixed point changes, or if the time or angle of rotation changes. It can also change if an external force, such as friction or gravity, acts on the object.
Rotational velocity and angular velocity are closely related, as they both measure the rate of rotation of an object. Rotational velocity specifically measures the linear speed of an object as it rotates around a fixed point, while angular velocity measures the angle of rotation per unit of time. They are mathematically related by the formula: rotational velocity = angular velocity * distance.
The rotational velocity at the edge of a rotating object is greater than the rotational velocity at the center of the object. This is because the point at the edge travels a greater distance in the same amount of time compared to a point at the center, resulting in a higher linear speed and rotational velocity.