May 6, 2024 · Angular Motion is the motion of an object around a fixed axis or point, or along a curved path with a constant angular velocity. It is also known as rotational motion. Another motion of an object is termed linear motion, which is a motion along a straight route.

When objects rotate, we will describe their motion with angular momentum (which could also be called "rotational momentum"). We will introduce a couple of additional concepts: torque (rotational analog of force) and rotational inertia (rotational analog of mass).

The angular motion is the motion of a body about a fixed point or axis. Here, in the article, we discuss its relationship with linear motion with the help of an example.

The angular motion is the motion where the body moves along the curved path at a constant and consistent angular velocity. An example is when a runner travels along the circular path or the automobile that goes around the curve.

When a body moves along a curved path at a constant angular velocity, then the motion of the body is known as angular motion. Examples of angular motion include a car moving around a curve, a gymnast running in circular paths, spinning a stone when tied to a string, and many more.

ANGULAR MOTION CONCEPTS. Torque--» A rotation or turning effect that produces angular motion around a central point.. Formula: T = Fd where T = torque, f = force, and d = force arm (the perpendicular distance from axis to application of force. Angular Displacement--» degrees traveled (θ = theta) or in radians (1 rad = 57.2957° degrees; 6.28 rad in a circle)

For situations involving circular motion, such as the pendulum of a clock, or a door swinging, it’s often easier to solve problems by looking at the angular motion of the objects. We can use and modify ideas from linear motion when talking about angular motion.

Learn about the concept of Angular Motion in Physics, how it is defined, the relationship between linear and angular motion, and the formulas to calculate angular velocity, acceleration, and displacement.

The angular acceleration of an object moving around a circle is given by \(\vec{\alpha} = \frac{d \vec{\omega}}{d t}\text{.}\) Combining this with the definition of angular position allows you to relate the magnitudes of the angular and tangential acceleration as \(\alpha = \frac{a_t}{r}\text{.}\)

With angular motion, it can be useful to define the position of an object using a different set of co-ordinates to those for linear motion. Instead of using the co-ordinates x and y, the displacement can be written in terms of r (its distance from the origin O), and the angle θ between the displacement vector and an axis through the origin O: