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) :
Options

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) :

Options

G1 Physics · Accepted Answer

Given: R = 9 m 120 revolutions are completed in 3 minutes. Angular speed: ω = [120 × 2π]/[3 × 60] = 4π/3 rad/s Centripetal acceleration: a(c) = ω²R = (4π/3)² × 9 = 16π² m/s²