A dog runs 100 m in 20 seconds. He then comes back half the distance in 10
seconds and stops. What is the dog's average velocity?
Answers
Answered by
3
Answer:
Average velocity = V1 x V2/V1 + V2
= (100/20 x 50/10)/(100/20 + 50/10)
= (5000/200)/(100+100/20)
= 25/(200/20)
= 25/10
= 2.5 m/s
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Answered by
1
Answer:
Total distance covered = 100 + 50 =150
Total time taken= 30s
Average velocity = total distance covered/total time taken
=150/30 m/s
5m/s
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