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tridianprime
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Homework Statement
At time t = 0, a point starts oscillating on the x - axis according to the law x = a sin(ωt). Find the average velocity vector projection (I assume it means magnitude based on previous questions in the book).
Homework Equations
The Attempt at a Solution
I knew that the average velocity over a large motion will be the same as the average velocity over a 1/4 of an oscillation so I let x = a. Then a = a sin(ωt) ⇒ t = π/2ω and so the average velocity is 2aω/π.
However, in the official solution it claims the answer is ((2√2)/3)*aω. I don't see how this makes sense and fear I am either missing something substantial or the official solution is incorrect.
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