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bobbarkernar
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Homework Statement
Astronauts in space cannot weigh themselves by standing on a bathroom scale. Instead, they determine their mass by oscillating on a large spring. Suppose an astronaut attaches one end of a large spring to her belt and the other end to a hook on the wall of the space capsule. A fellow astronaut then pulls her away from the wall and releases her. The spring's length as a function of time is shown in the figure.
http://session.masteringphysics.com/problemAsset/1001073/9/knight_Figure_14_36.jpg
What is her speed when the spring's length is 1.2 ?
Homework Equations
The Attempt at a Solution
i tried to write the position as x(t)= .6+1.4sin((2pi/T)t)