Question

A drag racer completes a race in 14.3 s. If the drag racer has an average speed of 251 km/h, how long is the racetrack?

Answer 1

`996.99 \ m/s`

Step-by-step explanation:

Time taken to complete the race,
`t=14.3 \ s`.

Average speed,
`v=251 \ km/h`.

First we will convert v in
`m/s`.

Therefore,
`v=(251* 1000)/(3600)\ m/s =69.72 \ m/s`.

Now, length of racetrack is given by ,
`D=v* t`.

`D=69.72* 14.3 \ m=996.99 \ m`.

Hence, this is the required solution.