CBSE Class 11-science Answered
Body is in motion and moving in a straight line A to B with the speed of 20km/h and then it move B to A with the speed of 30km/h then find out average speed average velocity
Asked by noorcutpic | 19 Jul, 2019, 20:05: PM
Expert Answer
Let d km is the distance between A and B.
time taken to travel from A to B = d/20 hr
time taken to travel from B to A = d/30 hr
total time = (d/20) + (d/30) = ( 5d/60 ) hr
total distance = 2d km
average speed = 2d/ (5d/60) = 24 km/hr
Answered by Thiyagarajan K | 20 Jul, 2019, 14:59: PM
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