High School

A circular saw is switched on. The blade reaches its maximum speed of 3000 rpm in 10 seconds. What is the angular acceleration of the blade?

Answer :

To convert from revolutions per minute to radians per second, multiply by 2π and then divide by 60. This process is essential in understanding angular speed in circular motion.

Angular speed is measured in radians per second when converting from revolutions per minute. To find the angular speed in radians per second, you can use the conversion factor: 1 revolution is equal to 2π radians.

Given that the flywheel is rotating at 300 revolutions per minute, multiply by 2π to get the angular speed in radians per second: 300 rpm x 2π = 600π rad/min. Finally, to convert this to radians per second, divide by 60 to get the angular speed in radians per second.