a person swims 100m in the first 50 s , 80 m in the next 40 s and 45 m in the last 20 s . what is the average speed ?
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A person swims 100 m in the first 40 s, 80 m in the next 40 s and 45 m in the last 20 s. What is the average speed? *(Ans: 2.25 m/s²)
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Answer:
Average speed=Average distance/Average time
100+80+45/50+40+20
225/110= 2.045
Explanation:
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