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The rear view mirror of a motorbike star...

The rear view mirror of a motorbike starts vibrating violently at some particular speed of motorbike.
Why does this happen?

Text Solution

Verified by Experts

It happens when frequency of vibrations of engine of the motorbike becomes, equal to the natural frequency of vibration of the rear view mirror, The amplitude of vibration of the mirror becomes maximum and it starts vibrating violently.
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