OCR M4 2008 June — Question 2

Exam BoardOCR
ModuleM4 (Mechanics 4)
Year2008
SessionJune
TopicCircular Motion 1

2 A rotating turntable is slowing down with constant angular deceleration. It makes 16 revolutions as its angular speed decreases from \(8 \mathrm { rad } \mathrm { s } ^ { - 1 }\) to rest.
  1. Find the angular deceleration of the turntable.
  2. Find the angular speed of the turntable at the start of its last complete revolution before coming to rest.
  3. Find the time taken for the turntable to make its last complete revolution before coming to rest.