Ahelicopter blade spins at exactly 110 revolutions per minute. its tip is 4.50 m from the center of rotation. (a) calculate the average speed (in m/s) of the blade tip in the helicopter's frame of reference. m/s
(b) what is its average velocity (in m/s) over one revolution? m/s

(a). The average speed is 51.83 m/s.

(b). The average velocity over one revolution is zero.

Explanation:

Given that,

Angular velocity = 110 rev/m

Radius = 4.50 m

(a). We need to calculate the average speed

Using formula of average speed

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

Hence, (a). The average speed is 51.83 m/s.

(b). The average velocity over one revolution is zero.

d) physical means can be used to separate the components of air.