.

1 answer:

6 0

The correct answer for this question is this one:

"The wing tip is moving around a circle at a constant speed. And it says that the acceleration is centripetal. It moves a distance that is equal to the circumference of a circle, as the wing makes a complete circle. The radius of the circle is equal to one half of the wingspan.

Circumference = 2 * π * 6.6 = π * 13.2
To determine the velocity, divide this distance by 22 seconds. 

v = π * 13.2 ÷ 22 
This is approximately 1.885 m/s. 

Centripetal acceleration = (π * 13.2 ÷ 22)^2 ÷ 6.6

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