5.26 is the answer
_____
4√21.05
-20
----------
1.0
-8
--------
25
-24
-------------
1
If you keep going on, the complete answer is 5.2625 (if you don't want a remainder)
<span>If One full revolution is 8 seconds when the dent is 6.5 inches above floor and the dent at the bottom is 0.5 inches above floor, the answer will be half a revolution or 4 seconds when the dent is at the bottom..</span>
If you use 0.05x+3 (x equal to the number of minutes) it would be 0.05(20) + 3 = 4. Pretty sure this is correct, but you might want to check it.
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