Average Speed
Average Speed
Average Speed
Average speed of an object in a time interval is equal to the total distance travelled divided by the total time taken.
Different units of speed: The SI unit of speed is meter per second. Another commonly used is kilometer per hour. When we talk about speed of aeroplanes and cars, it would be more appropriate to use km/h than m/s.
Let us take an example to understand this concept :
Illustration 1: In traveling form Pune to Nagpur, Rahul drove his bike for 2 hours at the speed 6 kmph and 3 hours at 70 kmph. Find his average speed
Solution : We know that,
Distance = Speed x Time
So, in 2 hours, distance covered = 2 x 60 = 120 km
In the next 3 hours, distance covered = 3 x 70 = 210 km
Total distance covered = 120 + 210 = 330 km
Total time = 2 + 3 = 5 hrs
Average speed :
A body moves with a uniform speed of 10 km/hr for 2 h. The average speed of the body is _________________ km/hr. | |||
| Right Option : A | |||
| View Explanation | |||
The odometer of a bus reads 6700 km when it starts from the station at 9 a.m., and when it comes back to the station at 10 p.m. the odometer reading is found to be 6960 km, then the average speed of the bus in the whole journey is __________________ km | |||
| Right Option : B | |||
| View Explanation | |||
A car travels from point A to B in 3 hours and returns back to point A in 5 hours.Points A and B are 150 miles apart along a straight highway.which of the following statements most accurately describes the motion of the car? | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
