Question

a rock takes off from earth an altitude of 1,140 km in 95 seconds.what was the rocket's average speed,in kilometers per second (km/s)​

Answer 1

the rocket average speed is 12 kilometers per second

Step-by-step explanation:

Given that

The distance is 1140 km

And, the time is 95 seconds

We need to determine the average speed in kilometers per second (km/s)

So as we know that

Speed = distance ÷ time

= 1,140 km ÷ 95 seconds

= 12 kilometers per second

hence, the rocket average speed is 12 kilometers per second