Find the amplitude of a sinusoid given frequency and time after zero-crossing

Thread starter jnuz73hbn
Start date Jul 25, 2023
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Jul 25, 2023

#1

jnuz73hbn

Homework Statement: What is the elongation of a sine wave if the amplitude is 12cm and the frequency is 12Hz after 0.04 s after the zero crossing

Relevant Equations: s=smaxsin (2π f t)

2π f t = 6,28  12  0,04 = 3,0144

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Jul 25, 2023

#2

Mentor

Welcome to PF.

What is the sine of 3.01 radians? How does that help you to get to your solution?

Jul 25, 2023

#3

jnuz73hbn

berkeman said:

Welcome to PF.

What is the sine of 3.01 radians? How does that help you to get to your solution?

thanks I have it now :)

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