a body travels from a to b at 40m/s and from b to a 60m/s .calculate the average speed

Asked by selsha ks | 21st Sep, 2011, 12:00: AM

Expert Answer:

In such type of question use the formula 
av. speed= 2. 40.60/(40+60)=48m/s

Answered by  | 21st Sep, 2011, 11:19: PM

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