JEE Main 2024 Physics question
A man carrying a monkey on his shoulder does cycling smoothly on a circular track of radius 9m and completes 120 revolutions in 3 minutes. The magnitude of centripetal acceleration of monkey is (in m/s²):
Answer: (B)
Solution
f = 120/180 = 2/3 rev/s, ω = 4π/3 rad/s; a = ω²r = (16π²/9)(9) = 16π² m/s².