Question

a body is moving along a straight line path covers one third of the distance with a velocity of 5 kilometre per hour and the rest of the part with 20 km per hour find the average velocity of the body ​

Answer 1

Answer:

10km/hr

Explanation:

avg velocity = total distance covered / total time taken

let total distance be 3s

time taken for 1st s distance covered = s/ 5kmhr-¹

time taken for remaining 2s distance = 2s/20kmhr-¹

total time taken = s/5 + 2s/20 = 6s/20

total distance we have 3s

avg velocity = 3s/ 6s/20 = 10 km/hr

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