Question

A car travels at an average speed of 60 km/h for 15 minutes.How far does the car travel in 15 minutes?D900 kmC 240 kmA4.0 km B 15 km

Answer 1

Notice that the speed is written using units of km/h and the time is written using units of minutes.

Convert the time interval to hours. Remember that 1 hour equals 60 minutes:

`15\min =15\min *(1h)/(60\min )=0.25h`

The distance d that a particle travels during a time t if it moves at an average speed v is given by the formula:

`d=v\cdot t`

Replace v=60km/h and t=0.25h to find the distance traveled by the car:

`d=(60(km)/(h))*(0.25h)=15km`

Therefore, the car travels 15km in 15 minutes.