ABSTRACT
At the end of this chapter you should be able to: • appreciate that 2π radians corresponds to
• define linear and angular velocity • perform calculations on linear and angular
velocity using ω = 2πn and v = ωr • define linear and angular acceleration • perform calculations on linear and angular
acceleration using ω2 = ω1 + αt and a = rα
• select appropriate equations of motion when performing simple calculations
• appreciate the difference between scalar and vector quantities
• use vectors to determine relative velocities, by drawing and by calculation
The unit of angular displacement is the radian, where one radian is the angle subtended at the centre of a circle by an arc equal in length to the radius, as shown in Figure 11.1.
