Question

calculate the speed of a vehicle that travelers 86km in 4 hour express the speed of both km/h and m/s ​

Answer 1

Answer:

86km /4 h = 21.5km / h

Step-by-step explanation:

1 km =1000 m, 1 h= 3600 s

86 km= 86000 m, 4 h = 14400 s

86000/14400 = 5.97 m / s

Answer 2

Answer:

speed=distance/time=86/4=21.5km/h

distance=86km=86*1000=86000m

time=4hr=4*3600=14400sec

speed=distance/time=86000/14400=5.9m/s