Math CentralQuandaries & Queries


Question from San, a student:

A piston in a large factory engine moves up and down in a cylinder.
The height, h centimetres, of the piston at t seconds is given by formula
How many complete cycles does the piston make in 30minutes?

Hi San,

The period of the sin function is 2π and hence the piston make one complete cycle every 2 seconds.


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