Question

Given v = 520 sin (30t - 5π/4), what is the period?

Question 14 options:

.21 sec


.05 sec


.067 sec


.03 sec

Answer 1

.21 sec

Explanation:

Compare 30t with 2πt/T where T is the period

30t = 2πt/T

30 = 2π/T

so T = 2π/30 = 0.21 sec