A grinding wheel of radius rotates at a steady rate of (rpm).
PHYSICS · Multi-part · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A grinding wheel of radius 0.20m rotates at a steady rate of 1200revolutions per minute (rpm).
(i) Convert the given rate into frequency in s−1 and then find the angular speed of the wheel.
(ii) Calculate the linear speed of a point on the rim of the wheel.
(iii) If a paint mark is made on the rim, how much time will it take for the mark to travel a total linear distance of 1.0km along its circular path, assuming the speed remains constant?