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Answer:
<em>a) 2.15 m</em>
<em>b) 123 m</em>
<em>c) 772.8 m</em>
Explanation:
<u>Circular Motion</u>
One point located at a distance r from the center of rotation travels a distance L given by the arc length :

Where
is the angle formed during the rotation.
The wheel described in the question has a radius r=4.1 m and a point on the wheel rotates some angles given in each part:
a) 
Calculating L

b) 

c) 

I dotn know sorryyyyyyyyyyy
We can see only 180 degrees ahead.. but any view which is behind that is impossible to see because of that....
The answer is 342 meters per second