Question

The blades of a helicopter rotor are 3.4m long from the central shaft to the tip...

The blades of a helicopter rotor are 3.4m
long from the central shaft to the tip of each blade. During a performance test, the rotational speed of the rotor is 530
revolutions/minute.

What is the tangential speed of the rotor?

What is the centripetal acceleration of the blade tip expressed in g?
1 g is 9.8m/s^2
0 0
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Answer #1

First we must convert RPM to angular speed:

Now we use the relationship between tangential and angular speeds:

Next we use the definition of centripetal acceleration:

This amount in terms of g results:

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