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MissPenguins
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Homework Statement
A 79.8 g mass is attached to a horizontal
spring with a spring constant of 2.66 N/m
and released from rest with an amplitude of
39.5 cm.
What is the velocity of the mass when it
is halfway to the equilibrium position if the
surface is frictionless?
Answer in units of m/s.
Homework Equations
v = [tex]\pm[/tex][tex]\sqrt{}[/tex]k/m(A2-x2
The Attempt at a Solution
So I used the above equation, and got 2.280533. The answer is wrong. Did I use the correct equation? Thanks.