Physics, asked by gurbakshsingh5187, 7 months ago

A object drives from a to b with uniform speed of 30 km/h and back to a with a speed of 20km/h .find its average speed

Answers

Answered by einstien101
0

Answer:

24km/hr

Explanation:

Let d be the distance between a and b

Total displacement/total time

= 2 d/ [(d/30) + (d/20)]

=2d*60/5d

= 120/5

=24

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