Solve the Problem $\mathrm { v } = 156 \cos \left( 120 \pi \mathrm { t } - \frac { \pi } { 3 } \right)$

question 336

Multiple Choice

Solve the problem.
-The output voltage for an AC generator is approximated by $\mathrm { v } = 156 \cos \left( 120 \pi \mathrm { t } - \frac { \pi } { 3 } \right)$ . Find the smallest positive value of $\mathrm { t }$ for which the output is 106 volts. Round values to 4 decimal places.

• A) \(0.0110\)
• B) \(0.0050\)
• C) \(0.0040\)
• D) \(0.0100\)

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