What is circular motion?
Answers
Answer:
Circular motion
Explanation:
In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation. The rotation around a fixed axis of a three-dimensional body involves circular motion of its parts. The equations of motion describe the movement of the center of mass of a body.
Examples of circular motion include: an artificial satellite orbiting the Earth at a constant height, a ceiling fan's blades rotating around a hub, a stone which is tied to a rope and is being swung in circles, a car turning through a curve in a race track, an electron moving perpendicular to a uniform magnetic field, and a gear turning inside a mechanism.
Since the object's velocity vector is constantly changing direction, the moving object is undergoing acceleration by a centripetal force in the direction of the center of rotation. Without this acceleration, the object would move in a straight line, according to Newton's laws of motion.
Question:--
ᴡʜᴀᴛ ɪs ᴄɪʀᴄᴜʟᴀʀ ᴍᴏᴛɪᴏɴ?
Answer:
Circular motion is described as a movement of an object while rotating along a circular path. Circular motion can be either uniform or non-uniform. During uniform circular motion the angular rate of rotation and speed will be constant while during non-uniform motion the rate of rotation keeps changing.
Some of the most common examples of circular motion include man-made satellite that revolves around the earth, a rotating ceiling fan, a moving car’s wheel, the blades in a windmill, and gears in gas turbines.
A particle is said to execute circular motion when it moves along the circumference of a circular path. An important aspect of circular motion is that the direction of motion is changing continuously unlike in the case of linear motion. Hence circular motion can also be described in terms of angular variables.
More Questions to know:
1) ᴡʜᴀᴛ ɪs ᴄɪʀᴄᴜʟᴀʀ ᴍᴏᴛɪᴏɴ ᴀɴᴅ ɪᴛ's ᴛʏᴘᴇs?
Answer:
Types of circular motion
There are two types of circular motion :-
Uniform circular motion :-
- Uniform circular motion can be described as the motion of an object in a circle at a constant speed. As an object moves in a circle, it is constantly changing its direction.
Non-Uniform Circular Motion:-
- When a motion of an object denotes changes in the speed of the particle moving along the circular path, it is called non-uniform circular motion.
2) ᴡʜᴀᴛ ɪs ᴄɪʀᴄᴜʟᴀʀ ᴍᴏᴛɪᴏɴ ғᴏʀᴍᴜʟᴀ.
Answer:
Since, the circumference of a circle is 2 * π * r, the arc length of the whole circle is 2πr units. Then using the formula s = r * theta, the angle theta equals the arc length divided by the radius. Therefore theta = 2πr/r = 2π radians.