Saw

Imagine that the saw blade with diameter 40 cm has one tooth colored with a different color.

How long is path describing by the tip of the tooth after 15 minutes, if the blade is rotated 13365 times?

Correct result:

s =  16795 m

Solution:

s=nπD=13365π40100=16795 ms = n \pi D = 13365 \cdot \pi \cdot \dfrac{ 40}{100} = 16795 \ \text{m}



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