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 :
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 is moving at an average speed of 332/5 km/hr.How much distance will it cover in 25/4hr | |||
| Right Option : C | |||
| View Explanation | |||
A body moving in a straight line covers half the distance with speed of 3 m/s. The other half of the distance is covered in two equal time intervals with speed of 4.5 m/s and 7.5 m/s respectively. The average speed of the particle during this motion is _____________ | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [20]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
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Om Umang
10thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
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Yogansh Nyasi
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Manya
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Archit Segal
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Manish Kumar
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Shreya Shrivastava
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Cheshta
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Ayan Ghosh
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Aman Kumar Shrivastava
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Anika Saxena
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Hiya Gupta
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Eshan Arora
8thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
10thMy experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thAbhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
10thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
