Question

A car starts from point A to point B with a spack to A with a speed of 50 km/hr. Find i) displacemeneed of 30 km/hr and returns bt of the car ii) distance travelled by the car iii) average speed of the car

Answer 1

Explanation:

Time taken by the car when it moves from B to A,

t2 = Distance/Speed = x/50

Total distance = 2x

Total time

= t1 + t2

= x/30 + x/50

= (5x + 3x)/150

= 8x/150

So, Average speed

= Total distance/Total time

= 2x/(8x/150)

= 37.5 km/hr

Read more on Brainly.in - https://brainly.in/question/21723#readmore