Solving Physics Question: Frequency & Period, Time to Reach 8A

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The discussion revolves around solving a physics problem related to sinusoidal current, represented by the equation i = 10sin(942.5t) amperes. Participants are tasked with determining the frequency and period of the waveform, as well as calculating the time it takes for the current to reach 8 amperes. Key parameters in the equation, such as amplitude and angular frequency, are crucial for finding these values. The topic is categorized under Alternating Currents, indicating its relevance to electrical engineering concepts. Clear guidance on the standard form of the sine function is suggested to aid in solving the problem.
salvatorecaine
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Here is a practical but slightly advanced physics question. i just need some help solving it.Well here goes

The instantaneous value, i, of a sinusoidal current may be
represented by the equation

i = 10sin 942.5tamperes

(a) Determine the frequency and the period of the waveform.

(b) Determine the time taken from t = 0 for the current to reach a value of 8 amperes.
 
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Can you show us what you have done?

Do you know the standard form for a sin function?
 
I haven't started working on it, i was hoping someone could give me a hand.
If its any help it under the Topic Alternating Currents.
 
salvatorecaine said:
I haven't started working on it, i was hoping someone could give me a hand.
If its any help it under the Topic Alternating Currents.

You should determine what the parameters given in
i = 10sin 942.5tamperes
stand for. Then you can easily find the answers you are looking for.
 
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