solve the example - A person swims 100 m in the first 40 s, 80m in the next 40 s and 45m in the last 20 s. what is the average speed?
Answers
Answered by
2
Answer:
1.25 m/s
Explanation:
We know that average speed = Total distance/Total time.
Note: Always answer in SI units unless asked to give answer in some other units.
From question,
Total distance =(100+80+45)m = 125 m.
Total time taken = (40+40+20)s = 100s
Substituting the values in the formula,
we get,
125m/100s = 1.25 m/s.
Answered by
2
Answer:
2.25 m/s
Explanation:
Total distance covered = 100 + 80 + 45 = 225 m
Total time taken = 40 + 40 + 20 = 100 sec
Average speed = total distance covered/total time taken
= 225/100
= 2.25 m/s
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