A car wheel is rotating at 6 revolutions per second and then accelerates to 7.5 revolutions per second over a period of 4.5 seconds. What is the angular acceleration of the wheel?

Question

Quizplus · Accepted Answer

The formula for angular acceleration (α) is: α = Δω/Δt Where: Δω is the change in angular velocity (expressed in revolutions per second - rev/s) Δt is the change in time (expressed in seconds) Δω = ω₂ - ω₁ Δt = t₂- t₁ Solve for angular acceleration: α = (7.5 rev/s - 6 rev/s) / 4.5 s α = 1.5 rev/s / 4.5 s α = 0.33 rev/s²

A Car Wheel Is Rotating at 6 Revolutions Per Second