A transverse sinusoidal wave is moving along a string in the positive direction of an x-axis with a speed of 87 m/s. At t = 0, the string particle at x = 0 has a transverse displacement of 4.3 cm from its equilibrium position and is not moving. The maximum transverse speed of the string particle at x = 0 is 16 m/s.

a) What is the frequency of the wave?

b) What is the wavelength of the wave? If the wave equation is of the form y (x, t ) = y m sin ( k x ± ω t + ϕ), what are

c) y m

d) k

e) ω

f) ϕ and

g) the correct choice of sign in front of ω?