Question

A tennis coach paces back and forth along the sideline 10 times in 2 minutes. find the frequency of her pacing ​

Answer 1

Explanation:

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Answer 2

Given:

Number of repetitions of tennis coach = 10 times

Time is taken for completing given repetations= 2 minutes

To find:

Frequency of pacing =?

Solution:

The frequency of pacing can be found using the following steps:

=> Frequency is calculated in seconds therefore first we need to convert minutes to seconds.

=> Time period in seconds to complete 1 repetation = $\frac{2 * 60}{10}$

=> Time period in seconds = $\frac{120}{10}$

=> Time period in seconds = 12 seconds

=> Frequency = $\frac{1}{Time taken in seconds}$

=> Frequency = $\frac{1}{12}$

=> Frequency = 0.08 second⁻¹

Hence, the frequency of her pacing is 0.08/ second.