Data for the motion of an object are given in the following table. State whether the speed of the object Class 7
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Data for the motion of an object are given in the following table. State whether the speed of the object Class 7
Data for the motion of an object are given in the following table. State whether the speed of the object is uniform or nonuniform. Find the average speed. Class 7
Answer:
| Time interval (s) | Distance (m) |
| 0 - 10 | 6 - 0 = 6 |
| 10 - 20 | 10 - 6 = 4 |
| 20 - 30 | 16 - 10 = 6 |
| 30 - 40 | 21 - 16 = 5 |
| 40 - 50 | 29 - 21 = 8 |
| 50 - 60 | 35 - 29 = 6 |
| 60 - 70 | 42 - 35 = 7 |
| 70 - 80 | 45 - 42 = 3 |
| 80 - 90 | 55 - 45 = 10 |
| 90 - 100 | 60 - 55 = 5 |
The object exhibits non-uniform motion, because it covers unequal distances in equal time (10 s) intervals.
Total distance travelled = 60m
Total time taken = 100 s
Average speed = [latex]\frac{\text { Total distance }}{\text { Total time taken }} [/latex]
= [latex]\frac{60}{100}[/latex] = 0.6 m/s