rajesh cycles 20km/h from his home to the railwaystation at a speed of 25km/h and comes back at a speed of 20km/h. what is his average velocity?
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Answer:
avg speed =2xy/(x+y)
=2*20*25/(20+25)
=1000/45 = 22.2222 km/hr is ur answer
yuvrajmanral123:
can you tell why have you supposed to take x and y
x and y 2 different speeds of body
u can consider any variable in place of x and y
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