how do i find the revolutions per minute of a pulley that is turned 120 degrees per second?
360 deg = 1 revolution
1 min = 60 sec
120/360 = 1/3 rev/sec
1/3 per/s * 60 sec/min = ?
To find the revolutions per minute (RPM) of a pulley that is turned 120 degrees per second, follow these steps:
Step 1: Determine the number of degrees the pulley rotates per minute.
To find the number of degrees per minute, you need to calculate the number of seconds in a minute and multiply it by the rate of rotation in degrees per second.
1 minute = 60 seconds
Degrees per minute = Degrees per second * 60
Degrees per minute = 120 * 60 = 7200 degrees per minute
Step 2: Convert the degrees per minute to the number of full rotations (revolutions) per minute.
Since there are 360 degrees in one revolution, divide the degrees per minute by 360 to find the number of revolutions per minute.
Revolutions per minute = Degrees per minute / 360
Revolutions per minute = 7200 / 360 = 20 revolutions per minute
Therefore, the pulley is turning at a rate of 20 revolutions per minute.
To find the revolutions per minute (RPM) of a pulley that is turned at a certain rate in degrees per second, you can follow the below steps:
Step 1: Convert the given rate from degrees per second to full revolutions per second. Since there are 360 degrees in one full revolution, divide the given rate by 360 to find the rate in full revolutions per second. In this case, dividing 120 by 360 yields 0.3333 (approximately).
Step 2: Multiply the rate in full revolutions per second by 60 to convert it to full revolutions per minute. Multiply the value obtained in step 1 (0.3333) by 60, resulting in approximately 20.
Therefore, the pulley is turning at a rate of approximately 20 RPM.