Q113. A disc revolves in a horizontal plane at a steady rate of 3 rad/s. A coin, when placed on the disc at 20 cm from the axis of rotation, just starts to slip. The coefficient of friction (g = π2 m/s2) is:Physics — NUST Mock 2 — Question 113 of 200A. 0.5B. 0.3C. 0.18D. 0.72Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →