A bicycle is rolling down a circular hill that has a radius of 8.15 m. The angular

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All the way May

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displacement...? A bicycle is rolling down a circular hill that has a radius of 8.15 m. The angular displacement of the bicycle is 0.960 rad. The radius of each wheel is 0.379 m. What is the angle (in radians) through which each tire rotates?

Thank you kindly for any help!!!! 10 points for the best help!
 
I would begin by drawing a diagram to see what's going on here.

We see that the bike has travled .96 r along a circle with a radius of 8.15 m.

This means the bike has traveled (and wheels have spun) 2*pi*8.15*.96/(2*pi) = 7.824 m

Now since we know the radius of each tire, we can find the number of radians rotated.

Which is, 7.824 m / (2*pi*.379 m) = 3.2856 r
 
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