Answered

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a flywheel with a very low friction bearing takes 2.2 h to stop after the motor power is turned off. the flywheel was originally rotating at 33 rpm. what was the initial rotation rate in radians per second? answer in units of rad/s.

Sagot :

Lanuel

The rotation rate in radians per second is equal to 3.4562 radians per second.

What is a conversion factor?

A conversion factor can be defined as a number that is typically used to convert (change) a number in one (1) set of units to another, either by dividing or multiplying.

How to determine the initial rotation rate in radians per second?

Since the flywheel was originally rotating at 33 revolutions per minute (rpm), we would have to determine the rate of rotation in radians per minute by using an conversion factor:

1 rev = 2π radians

33 revs = X radians

Cross-multiplying, we have:

X = 33 × 2 × 3.142

X =  207.372 radians/min

Next, we would convert the rotation rate to radians per second by dividing with 60 seconds:

Rotation rate = 207.372/60

Rotation rate = 3.4562 radians per second.

Read more on rotation rate here: https://brainly.com/question/20907785

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