If a tuning fork has 75 hz, how many cycles per second does it vibrate?

N = 75 cycles per second

Explanation:

As we know that frequency is defined as the number of cycles per second

so here we can say that frequency is same as the number of cycles per second

so here given that

so here we have

Number of cycles per second = 75 Hz

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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