Ahelicopter blade spins at exactly 100 revolutions per minute. its tip is 5.00 m from the center of rotation. (a) calculate the average speed of the blade tip in the helicopter’s frame of reference. (b) what is its average velocity over one revolution? \

Explanation:

It is given that,

A helicopter blade spins at exactly 100 revolutions per minute.

Its tip is 5.00 m from the center of rotation, r = 5 m

(a) Let v is the average speed of the blade tip in the helicopter’s frame of reference. Distance covered by the helicopter,

In 100 revolutions,

So, average speed of the blade tip in one second is given by :

v = 52.35 m/s

(b) The average velocity over one revolution is zero because the net displacement in one rotation is 0.

Hence, this is the required solution.

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