A motorcycle engine turns $($and vibrates$)$ at $300rpm$ with a harmonic force of $20$ N$.$

What is the amplitude of the vibration with respect to the frame $($assumed to be stationary$)$ and phase of the response $($with respect to the force$),$ if:

the mass of the engine is $40kg,$

the stiffness of the mounts is $40k\frac{N}{m}$ and

the damping coefficient is $125N\frac{s}{m}?$