Speed of an Object
Speed of an Object
Speed :
Speed is the distance traveled per unit time. It is a way of measuring how quickly something is moving or being done, or something moving fast.
Calculation of speed:
The instrument/ meter measuring the speed of the vehicle is called a speedometer. The distance traveled by the vehicle is given by an instrument called odometer.
We can calculate speed from the given formula.
The SI unit of speed is meter per second(m/s). We also calculate speed as kilo meter per hour(km/h).
We can calculate the speed of an object if we know the distance it travels in a given amount of time. Let us see how this is done.
Illustration 1:, In a 100 m race Shreya ran the race in 20 s. What is Shreya’s speed?
Solution:As speed is the distance traveled in unit time, Shreya’s speed is the distance traveled in unit time. Shreya’s speed can be calculated by dividing the distance she ran by the time she took to cover that distance. Therefore, Shreya’s speed is:
Speed is a way of measuring how quickly something is moving or being done, or something moving fast.
Illustration 2: If a person covers a distance of 15 m in 5 seconds then find out the speed of the person.
Solution: As we know,
Therefore,
Illustration 3: A car is moving with a speed of 50 m/s in time 20 seconds. Find out the distance covered by the car in given time period.
Solution: We know that
Distance = 50 X 20 = 1000 m/s = 1 km/s
A car moves with a speed of 60 km/hr for 20 min and then at a speed of 30 km/hr for the next 20 min. The total distance covered by the car is ____________________________ km. | |||
| Right Option : C | |||
| View Explanation | |||
A person crosses a 60 meter long street in 5 minutes.what is the speed in km/hr | |||
| Right Option : B | |||
| View Explanation | |||
A certain distance is covered in 3 h 48 min at 5 km/h. How much time will be taken to cover it at 28.5 km/ | |||
| Right Option : B | |||
| 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
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
7thMy 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.
Hiya Gupta
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Yogansh Nyasi
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Prisha Gupta
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Shivam Rana
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Om Umang
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Cheshta
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Shreya Shrivastava
8thOne 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
10thUsually 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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Eshan Arora
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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10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
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