Question 3 For the following wave function, find the amplitude, angular frequency, and position at t = 1.5 s y = - 1.4 sin( 2.8 t) O amplitude = 1.4 angular frequency = 2.8 rad/s y = -1.22 O amplitude = -1.4 angular frequency = 2.8 rad/s y = -1.22 O amplitude = -1.4 angular frequency = 2.8 rad/s y = 1.22 O amplitude = 1.4 angular frequency = 2.8 rad/s y = 1.22