a boy swins in a 100 m long pool he covers 60 m with a velocity of 20m/s and covers the rest of the distance with the velocity of 10m/s. calculate the average velocity of the boy.
answer me with solutions. i got 14.2 m/s
- Benedic
- 02 Jan
- 2 Answers
2 Answers
2 Answers
-
AV=T.displacement/t.time total displace.=100m T.time=60/20+40/10=7sec putting in formula 14.3m/s and is obtained.0Modal content
-
60m * 1s/20m = 3 seconds
40m * 1s/10m = 4 seconds
100m/7s = average velocity = 14.28571 m/s and I would round it to 14.3 m/s1Modal content
View all vote's
Other Related Discussions
-
What is the exam pattern for NEET Exam?
-
How many seats are reserved for st/obc/ general?
-
which authors study material book is best?
-
what is triploblastic character?
-
why we cannot use salt other than kcl kno3 NH4cl in salt bridge??
-
What is somaclonal verietion ?
-
What is gibs free energy
-
There are 10 flowers (each with 10 stamens ) If one of the individual plant is 1/2 protolaria .in each microsporangium of every stamens of all the flowers there are 30 microspore mother cells
-
Will neet be conducted twice a year?
-
Can anyone tell me that what should be the score in order to get rank under 2000??
