Question

solve the following problems.(SPEED). WRITE THE COMPLETE SOLUTION.

1.what is the speed of a rocket that travels 8000m in 13s?

2. A person walks 100m in 5 minutes,then 200m in 7 minutes and finally 50m in 4 minutes. Find its average speed.


please help me .​

Answer 1

Answer:

1. Speed = distance÷time

8000 ÷13

2. Average speed =total distance ÷ total time

Total distance =100+200+50=350

Total time =5×60+7×60+4×60=300+420+240=960

350÷960