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# vertical displacement watch

1. The vertical displacement y of the tip of a cantilever beam at a time t is approximated by the formula

y=0.05 sin(6.5t)

If y=0.04 m, find all possible values of t for the range 0≤t≤0.5 s.

I've done questions like these in the past and have completely forgotten how to do them, any haelp would be appreciated
2. 0.05 sin(6.5t) = 0.04
sin(6.5t) = 0.8

This works out to an equation you can solve simply using the inverse sine function. Just be careful and make sure you get all the answers.

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Updated: October 28, 2015
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