Question

A tennis coach paces back and forth along the sideline 8 times in 14 seconds. What is the frequency of her pacing, in Hz?

Answer 1

Answer:0.571 Hz

Step-by-step explanation:

Given

Tennis coach passes back and forth
`8` times in
`14 seconds`

Frequency is defined as number of occurrence of an repeating event per unit time.

So for same event occur
`8` times in
`14\ sec`

Frequency is
`(8)/(14)=(4)/(7)\ s^(-1)`

`=0.571\ Hz`