a body covers half the distance with speed 10 MS and the next half of – InterviewSolution

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1.	a body covers half the distance with speed 10 MS and the next half of the journey with speed 20 MS the average speed of the body for the entire journey is
Answer» answer is 6.66 m/sExplanation:LET the total DISTANCE be 2x m. s1= 10m/s s2=20m/st1= d1/s1=x/10t2=d2/s2=x/20therefore, average speed =total distance /total timeAvg speed = D/t1+t2 =2x while DIVIDED by x/10+x/ 20S avg= 20/3 =6.66m/s

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