Respuesta :

The average velocity of a car that travels 450 km north in 9.0 h is 5.0 x 10 km/h

The average velocity of a car that travels 450 km north in 9.0 hours is 50km/h

In Physics, Average velocity / speed is defined as the change in position by distance over time.

Average speed is given as  Total distance travelled / Total time taken

where distance travelled =450 km north

Time =9.0 hours

Average velocity ==450 km/ 9.0 hours

Average velocity =50km/h.

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