Question

sumit drive his car at a constant rate of 40km/hr for one hour and then at a constant rate of 60km/hrs for one more hour. Find his average speed.

Answer 1

average speed =40+60/2
= 50kmph

Answer 2

Answer: The average speed will be 50 km/hr.

Explanation:

Given that,

First speed$v_{1} = 40\ km/hr$

Second speed $v_{2}= 60\ km/hr$

Total time = 2 hour

We know that,

The average speed define as:

$v = \dfrac{v_{1}+v_{2}}{t}$

$v = \dfrac{40+60}{2}$

$v = 50\ km/hr$

Hence, The average speed will be 50 km/hr.