Activity 8.4 Let us calculate (Page 114) Table 8.2 Finding the speed of trains Class 7
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Activity 8.4 Let us calculate (Page 114) Table 8.2 Finding the speed of trains Class 7
Activity 8.4 Let us calculate (Page 114) Class 7
Table 8.2 Finding the speed of trains
Answer:
Table 8.2 Finding the speed of trains
| S.No | Name of the train | Name of the next/last station | Distance till the next station (km) | Time taken till the next Station (h) | Speed of the train between these two stations (km/h) |
| 1. | Howrah-Patna Superfast Exp | Patna Junction | 532 | 8.5 | 62.6 |
| 2. | Pune-Jabalpur Superfast Exp | Jabalpur Junction | 1040 | 17 | 61.2 |
| 3. | Bandra-Jabalpur Express | Jabalpur Junction | 1140 | 2.0 | 57.0 |
| 4. | Vande Bharat Express (Delhi-Varanasi) | Varanasi Junction | 760 | 1.8 | 95.0 |
I once watched a part of a marathon on a straight road stretch. I noticed that some people seemed to be running at the same speed during that distance while some people would speed up or slow down. How were their motion different?
Answer:
People who run at the constant speed has uniform motion. It means they are covering equal distances in equal interval of time. On the other hand, those who speed up or slow down have non-uniform motion. It involve a changing speed.