Question

A swimmer speeds up from 3 to 5.4. during the last 15 s of a workout. What is theswimmer's acceleration during this time interval?

Answer 1

Acceleration is defined as the rate of change of velocity within a given time duration.

If the initial velocity is 'u' and the final velocity is 'v', and the time duration is 't', then the acceleration 'a' is given by,

`a=(v-u)/(t)`

According to the given data in the problem,

`\begin{gathered} u=3 \\ v=5.4 \\ t=15 \end{gathered}`

Substitute the values,