9702 · 12.1
Kinematics of uniform circular motion
Cambridge 9702 Paper 4 — Kinematics of uniform circular motion (12.1). Senpai Corner diagram-backed pilot with premium structure and live visuals.
Need to know
What you need to know
- 12.1 Kinematics of uniform circular motion.
- The angular displacement of a body is the change in angle (radians, degree or revolutions) through which the body rotates around a circle.
- Angular displacement is the ratio of: 𝛥𝜃 = 𝛥𝑠 𝑟.
- A radian (rad) is defined as the angle subtended at the centre of a circle by an arc equal in length to the radius of the circle.
- Radians is usually written in term of π.
- For a rotation for a complete circle (360 0 ), the radians is 2 π ( 𝛥𝜃 = 2πr/r).
Explanation
Kinematics of uniform circular motion
- 12.1 Kinematics of uniform circular motion.
- The angular displacement of a body is the change in angle (radians, degree or revolutions) through which the body rotates around a circle.
- Angular displacement is the ratio of: 𝛥𝜃 = 𝛥𝑠 𝑟.
- A radian (rad) is defined as the angle subtended at the centre of a circle by an arc equal in length to the radius of the circle.