Wednesday

April 16, 2014

April 16, 2014

Posted by **John** on Friday, April 27, 2012 at 9:58am.

a. what is your amplitude after 20 pumps if you are standing? If you are sitting?

b. What is the minimum number of pumps needed to make the amplitude equal 75 cm when you pump sitting down? Standing up?

- math -
**Steve**, Friday, April 27, 2012 at 11:42amsitting: a = 3+2p for p pumps

standing: a = 3*1.2^p for p pumps

3+2(20) = 43

3*1.2^20 = 115

3+2p = 75: p=36

3*1.2^p = 75: p=18

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