Question

Given v = 145 sin (200πt + 3π/2), what is the period?Question 12 options:10 msec5 sec.03 sec.005 sec

Answer 1

For a sine or cosine function of the form:

`A\sin (B(x+C))+D`

the perfiod is given by:

`(2\pi)/(B)`

In this case we have that:

`B=200\pi`

Then we have:

`(2\pi)/(200\pi)=(1)/(100)=0.01=10*10^(-3)`

Therefore, the period is 10 ms