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ollegr [7]
3 years ago
7

A weight is attached to the end of a spring. Its height after t seconds is given by the equation.

Mathematics
1 answer:
Aneli [31]3 years ago
6 0

Answer:

Step-by-step explanation:

y=-2sin (\frac{2\pi (t+1)} {7})+5\\Height ~is~maximum~\\if sin (\frac{2\pi (t+1)}{7} )=-1\\or~ \frac{2\pi (t+1)}{7} =\frac{3 \pi }{2} \\t+1=\frac{3\pi }{2}  \times \frac{7}{2\pi } =\frac{21}{4} \\t=\frac{21}{4} -1=\frac{17}{4} =4.25 ~seconds.

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