Question

a particle travels at a constant velocity of 3m/s in 20s then it stops for 10 s before completing it journey in another 30 sec at a constant speed of 2m/s what is the average speed in whole journey . please answer urgent​

Answer 1

Answer: case 1

v = 3m/s , t = 20s

therefore s = vt = 60m

case 2

v = 2m/s, t = 30s

s = vt = 2*30 = 60m

average speed = total distance covered in total time

V average = 60+60/20+30

V average = 120/50 = 2.4m/s

Answer 2

Hello

The answer which are looking for is

2 m/s

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