NEVFR
Member
I am glad you asked this because I was just studying the mechanical section and this question threw me for a loop. Book seems like a decent study tool but I have found a few wrong answers.One more question. Answer guide stipulates that the circumference of the wheel here is 24", and that you double that number to find the distance between W1 and W2 after a complete revolution.
How do we know that the circumference of the wheel is 24"? I plugged 10" into c=2[pi]r. As far as I can tell, the diameter is 10", meaning circumference should be 2(5") * pi, which should be 31.4? Where did I go wrong? Thanks.
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