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December 21, 2014

December 21, 2014

Posted by **Nikki** on Thursday, March 1, 2012 at 9:21pm.

- Clac- math -
**Damon**, Thursday, March 1, 2012 at 9:47pma = angle to floor = 60 at t

h = height = 20 sin a

dh/dt = 20 cos a da/dt

at a = 60 deg, cos a = 1/2 and da/dt=-.1

dh/dt = 20 (1/2) (-.1)

= -1 ft/s

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