What is an angular speed of 18.4 rad/s in revolutions per hour? Give your answer correct to one decimal place.
Find the speed of a particle which is moving on a circle of radius 35 m at an angular speed of 8.8 rad/s.
Charlotte and her sister were on a circular platform that was spinning around its center at 12 revolutions per minute. Charlotte was 5 m from the center of the platform and her sister was 3.5 m from the center. Find the speeds and at which Charlotte and her sister, respectively, were moving. Give your answers in meters per second correct to one decimal place.