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September 22, 2014

September 22, 2014

Posted by **Azal - pleaseee helpp** on Saturday, July 20, 2013 at 3:27pm.

a)write an equation the describes the distance of the object from its mean position as a function if time.

- trig -
**Reiny**, Saturday, July 20, 2013 at 10:42pmgeneral shape

d = a sin kt

we know a = 15

and if it takes 4 sec to complete 5 cycles

then 1 cycle or 1 period = 4/5 seconds

to find k,

2π/k= 4/5

4k = 10π

k = 5π/2

equation:

d = 15 sin (5π/2) t

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