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 :
An object completes one round of circle of radius 7 m in 20 sec.Distance travelled after 10 sec is | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following are correct ? (a) Average speed of an object in a time interval is equal to the total distance traveled divided by the total time taken. (b) The SI unit of speed is meter per second. | |||
| Right Option : C | |||
| 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 | |||
Students / Parents Reviews [20]
We started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thAbhyas 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
8thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
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Om Umang
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8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
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