Finding the phase constant for simple harmonic motion

AI Thread Summary
To find the speed of a hydraulic valve component undergoing sinusoidal vibrations at t=0.015s, the frequency is 25Hz, amplitude is 2cm, and angular frequency is 157 s-1. The speed equation used is vx(t) = Aw sin(wt + φ + π/2). The user has calculated vx(t) but is struggling to determine the phase constant (φ) due to insufficient information. Clarification on whether the problem was stated exactly as worded is suggested to address the lack of data for solving the phase constant. The discussion highlights the need for complete information to accurately calculate the speed in simple harmonic motion.
Bugsy23
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Homework Statement


I need to find the speed, at time t=0.015s, of a hydraulic valve component undergoing sinusoidal vibrations. The frequency of the vibrations is 25Hz, the amplitude is 2cm and the angular frequency is 157 s-1


Homework Equations


The equation for speed of sinusoidal vibrations I have is
vx(t)=Aw sin(wt+\phi+pi/2)

The Attempt at a Solution


So far the values I have are
vx(t)=(0.02*157)*sin(157*0.015)+?+pi/2)
But I can't find anywhere how you're supposed to calculate the phase constant
 
Physics news on Phys.org
There's not enough information to solve the problem. Did you state the problem exactly as it was worded?
 

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