The displacement, d, in millimeters of a tuning fork as a function of time, t, in seconds can be modeled with the equation d=0.4 sin(1760rt). What is the maximum displacement of the tuning fork?

a. 0.2 mm
b. 0.4 mm
c. 0.8 mm
d. 2.5 mm

Question

The displacement, d, in millimeters of a tuning fork as a function of time, t, in seconds can be modeled with the equation d=0.4 sin(1760rt). What is the maximum displacement of the tuning fork?

a. 0.2 mm
b. 0.4 mm
c. 0.8 mm
d. 2.5 mm

perl · Answer

I think you can use the maximum displacement of the sine 
maximum displacement = 0.4 * maximum of sin

perl · Answer

im not sure what the rt stands for in sin(1760 `rt`)

anonymous · Answer

rate of time

anonymous · Answer

@perl