The particles in diagram 3 move fast enough to break away from each other.
The horizontal component of the force is 34.5 cos(45) = 24.4 newtons
The vertical component of the force is 34.5 sin(45) = 24.4 newtons
Explanation:
It is given that,
Frequency of vibration, f = 215 Hz
Amplitude, A = 0.832 mm
(a) Let T is the period of this motion. It is given by the following relation as :



(b) Speed of sound in air, v = 343 m/s
It can be given by :




Hence, this is the required solution.