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A Vinyl record measures 32cm across. There is a 1cm margin around the edge and a centre label which measures 10cm across. There are 30 grooves per cm. How far does the needle travel if the record is played from start to finish?
2 comments:
for a lateral thinker you are stuck in the groove.
the needle DOES NOT TRAVEL ANYWHERE, the vinyl record spins on the turntable.
Hehe... this is the same answer I originally had. Unfortunately it is incorrect.
I wonder what Aristotle thinks of you using his name all the time...
WARNING: HINT BELOW.
Whilst the needle does not move around the record, it does move from the outside to the inside of the record...
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