Find out the average rate of motion in
the case of a person who rides the first
mile @ 10 m.p.h., the next mile @ 8
m.p.h and the third mile @ 6 m.p.h.
Answers
Answered by
5
Answer
Let the total distance travelled be x km Then total time taken = 10x/3+20x/3+60x/3=30x+60x+180x
=1806x+3x+x=18010x=18x hrs Then average speed = =TotaltimetakenTotaldistancetravelled
=x/18x km/hr = 18 km/hr
Answered by
6
Average speed =total distance/total time
Total distance=3miles
T1=1/10
T2=1/8
T3=1/6
average speed= total distance/total time
=3/1/10+1/8+1/6
=3/24/240+30/240+40/240
3/94/240
=3.240/94
= 7.65mile /hr
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