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 train travels between two stations 'P' and 'Q' . it travels with a velocity 20 km | |||
| 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 | |||
A cheetah the fastest of all the land animals over a short distance accelerates from rest to 26 m/s in two seconds.assuming the acceleration is constant find the average speed of cheetah? | |||
| Right Option : C | |||
| View Explanation | |||
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The 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.
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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...
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