Question

A tire has a tread pattern with a crevice every 2.00 cm. The repetitive striking of the crevice edges on the road results in a vibration as the tire moves. What is the frequency of these vibrations if the car moves at 14.4 m/s?

Answer 1

Answer:

Frequency of vibration will be equal to 720 Hz

Explanation:

It is given that car moves with a speed of 14.4 m/sec

Its mean that car cover 14.4 m in 1 sec

We have to find the frequency of vibration corresponding to this velocity

It is given that car has a tread pattern with a crevice every 2 cm

So number of crevices moved in 1 sec will be equal to $=\frac{14.4}{0.02}=720$

So frequency of these vibration will be equal to 720 Hz