A person swims 100 m in the first 40s ,80 m in the next 40s and 45 m in the last 20s. What is the average speed??
...give me the answer step by step...
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sum of the distance he or she cover
=(100+80+45)m
=225m
sum of time it take to cover the distance
=(40+40+20)s
=100s
average speed =distance/time
=225/100
=2.25m/s
=(100+80+45)m
=225m
sum of time it take to cover the distance
=(40+40+20)s
=100s
average speed =distance/time
=225/100
=2.25m/s
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