Question

400 km
Distance covered by the car,
s = 2400 km - 2000 km
Time elapsed, t = 8 h
Average speed of the car is,​

Answer 1

Answer:

50 km / h

Explanation:

distance = 400 km

time = 8 h

average speed = total distance / total time

:. = 400 km / 8 h

:. = 50 km / h

Answer 2

Answer:

50 km h-¹ or 13.0 m s-¹

Explanation:

distance covered by the car,

s=2400 km – 2000 km = 400 km

Time elapsed, t = 8 h

Average speed of the car is

Vav = s/t = 400km/8

=50 km h-¹

50 km/h x 1000m / 1km x 1h/3600s

= 13.9m s-¹

The average speed of the car is 50 km h-¹ or 13.9 m s-¹