Find the displacement of a simple harmonic wave of amplitude 9.60 m at t = 0.71 s. Assume that the wave number is 2.34 m -1, the angular frequency is 2.88 rad/s, and that the wave is propagating in the + x direction at x = 1.21 m. {Hint: y = Asin (k x - ω t) , and inside the angle bracket has a unit of radian here.}
a. 1.56 m
b. 3.36 m
c. 5.28 m
d. 6.78 m
e. 9.47 m