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September 19, 2014

September 19, 2014

Posted by **Hamp** on Friday, November 27, 2009 at 9:08am.

How much time does it take the object to cover a total distance of 4A? Enter your answer as a formula involving the period.

I've got the first part of the

- physics -
**drwls**, Friday, November 27, 2009 at 5:41pmIt takes one period (T) for the object to travel 4A. That's 2A going positive and back to zero, and 2A going negative and back to zero. (Starting at zero)

For the first question, assume

Y = A sin(2 pi t/T)

How much of the time is Y > A/2?

Do the math. Find the times t when y = A/2. The figure out the times when y > A/2, between those points in a single cycle.

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