SOLUTION: the two coin shown have radii of 3 cm and 1 cm. the smaler coin rolls along the circumference of fixed larger coin until the smaller coin returns to its origional position. how man
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Question 1184404: the two coin shown have radii of 3 cm and 1 cm. the smaler coin rolls along the circumference of fixed larger coin until the smaller coin returns to its origional position. how many revolution has the small coin made? Answer by ikleyn(52847) (Show Source):
Exactly 4 = 3 + 1 (four) revolutions around its own center.
You may detect/discover this extra revolution EXPERIMENTALLY, if you will make
an appropriate experiment, which I amicably recommend you to do (at least, a mental experiment in your mind . . . )
It is better to see it once, than listen relevant explanation 100 times.
