Question

An odometer of a car reads 2000 km at the start of a trip and 2400 km at the end of the trip. If a trip took 8 hours, calculate the average of the car in km/h-1 and ms-1. plz help me

Answer 1

Explanation:

distance covered in trip =400km

time taken of trip=8hrs

average speed= distance / time taken

speed=400/8

speed=50km/hr or13.889m/sec

Answer 2

Answer:

Given:

• Distance covered by the car,s=2400km-200 km=400km

• Time taken , t = 8 h

Solution :

$average \: speed \: = \frac{total \: distance \: travelled \: }{total \: time \: taken\: }$

$\implies av.speed=\frac{400km}{8h}=50km {h}^{ - 1}$

$\frac{50 \times 1000}{60 \times 60} = \frac{125}{9} = 13.9m {s}^{ - 1}$

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