(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A block attached to a spring is displaced from equilibrium to the position x = +4.9 m and released. The period is 0.5 s . At what positions and times during the first complete cycle do the following condition occur:

| v | = 0.5 v_{max}, Where v_{max} is the maximum speed?

2. Relevant equations

none i suppose.

3. The attempt at a solution

I believe the s(t)= 4.9 sin (4pi(t)+0.5pi)

v(t) = 19.6pi cos (4pi(t)+0.5pi)

there for 0.5 max velocity is = 9.8pi ---> (19.6pi/2)

so for velocity without breaking the phase constant:

4pi (t) + 0.5pi = pi/3 5pi/3

i dont think i am right, can any one clear it up?

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# Homework Help: Oscillation Problem

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