Which of the following is not a bioindicator of water pollution

1.	Which of the following is not a bioindicator of water pollution
Answer» Answer❣ Question : An object travels 20m in 4s and then other 20m in 10s . What is the average speed of the object ? SOLUTION : As per the question we have two cases so let's assume each as Case 1 and Case 2 RESPECTIVELY ! Case 1 : DISTANCE Covered : 20m Time taken : 4 sec Speed : Distance / time : 20 / 4 : 5 m / sec Case 2 : Distance Covered : 20 m Time taken : 10 sec Speed : Distance / time : 20 / 10 : 2 m / sec huge average speed = TOTAL distance total time averagespeed=totaltimetotaldistance = \5 + 2 4 + 10=4+105+2 = 7 40 = 0.175=407=0.175 Hence , the average speed of the object is 0.175 m / sec !!

Answer»

Answer❣

Question :

An object travels 20m in 4s and then other 20m in 10s . What is the average speed of the object ?

As per the question we have two cases so let's assume each as Case 1 and Case 2 RESPECTIVELY !

Case 1 :

DISTANCE Covered : 20m

Time taken : 4 sec

Speed : Distance / time

: 20 / 4

: 5 m / sec

Case 2 :

Distance Covered : 20 m

Time taken : 10 sec

Speed : Distance / time

: 20 / 10

: 2 m / sec

huge average speed = TOTAL distance total time

averagespeed=totaltimetotaldistance

= \5 + 2 4 + 10=4+105+2

= 7 40 = 0.175=407=0.175

Hence , the average speed of the object is 0.175 m / sec !!

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