A body travels 30 m with speed 10 m s and 40 m with speed 15 m s . Calculate average speed for entire journey.
pls give me full answer
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1
Answer:
average speed=total distance÷total time
=(30+40)÷{[30/10]+[40/15]}
=70/(3+8/3)=210/17 m/s
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Answer:
refer the attachment that is the correct answer
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