# Resonance question

1. Jun 7, 2015

### Jamessamuel

1. The problem statement, all variables and given/known data
The graph (see image in part 3) illustrates how the amplitude of a car's vertical oscilltions vary withthe frequency of an oscillating surface. I was asked to state the amplitude of the oscillation of the surface. I was told It stayed constant.

2. Relevant equations
Nil

3. The attempt at a solution
I narrowed it down to x and y. However I cannot justify one over the other.

2. Jun 7, 2015

### Svein

And you can clearly see where the resonance is. Now, when do you think that the car's amplitude most closely follows the oscillation of the surface - at a very low frequency (for example when the oscillation period is 10 minutes) or at resonance?

3. Jun 7, 2015

### haruspex

The given curve is a bit misleading. The right-hand tail should be asymptotically zero.

4. Jun 8, 2015

### rude man

Might be, might it not?

5. Jun 8, 2015

### rude man

Svein has the good clue for you.

6. Jun 8, 2015

### haruspex

Sure, the curve shown doesn't rule it out, but it could be made clearer.