Question

The odometer of a car reads 2000km at the start of a trip and 2400 km at the wnd of the trip. If the trip tooks 8 h. Calculate the average speed of the car in km/h and m/

Answer 1

distance= 400 km
time=8 h
avg. speed= total d/ total time
=400/8= 50 kmph

50 kmph=50 * 5/18 m/sec
=250/18 m/sec=13.8 m/sec

Answer 2

distance=400km
time=8hrs
avg speed =total distance by total time
400÷8=50kmph
in m/s=50×5/18=13.9m/s