a carousel with a 70 foot diameter makes 3 revolutions per m

a carousel with a 70 foot diameter makes 3 revolutions per minute. Find the angular speed of the carousel in radians per minute.

Solution

A carousel with a 70ft diameter makes 3 revolutions per min.
Diameter,D= 70 ft
Rotational speed, N=3 revolutions per minute
Find the angular speed of the carousel in radians per min.
Angular speed, =2N rad. per min.=2××3=18.84956rad. per min.