Question

a car travel along a straight line for first half time with speed 40 km/h and the second half time with speed 60km/h .find the average speed of the car.

Answer 1

Given:

Speed of the car during 1st half time (s1) = 40 km/ hr

Speed of the car during 2nd half time (s2) = 60 km/ hr

We know that,

Since Average speed (sa ) = s1 + s2 / 2,

Therefore Average speed of the car = 40 + 60 / 2

  = 100 / 2

 = 50 km/ hr

Therefore average speed of the car is 50 km/ hr.

Answer 2

Answer:

Average speed is determine by the sum of the individual miles per hour values divided by the number of values. Each value must first be adjusted for common measurements of the distance along the same measurements of time. In this situation, the time is the same for both vehicles and the distance is equal. The equation is (60 + 40) divided by 2 equals 50 km/h.

Explanation: