Advertisements
Advertisements
प्रश्न
A body is moving along a circular path of radius r. What will be the distance and displacement of the body when it completes:
Two full revolutions
Advertisements
उत्तर
Distance travelled is two times the perimeter of cirle.
So distance travelled is =4π r.
Displacement =0 as starting and ending point are coinciding.
APPEARS IN
संबंधित प्रश्न
Can displacement-time sketch be parallel to the displacement axis? Give a reason to your answer.
Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.
State how is the distance travelled in any part determined from this graph .
How can you find the following?
Displacement from velocity – time graph.
From the displacement – time graph shown given below calculate :
- Velocity between 0 – 2 s.
- Velocity between 8 s – 12 s.
- Average velocity between 5 s – 12 s.
Can a body have negative displacement?
A 50 m long train passes over a bridge at a speed of 30 km/h. If it takes 36 seconds to cross the bridge, calculate the length of the bridge.
The table below shows the distance travelled by two vehicles A and B during each second:
| Time (s) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Distance travelled by A (m) | 0 | 20 | 80 | 180 | 240 | 300 | 360 | 420 |
| Distance travelled by B (m) | 0 | 10 | 40 | 90 | 160 | 250 | 360 | 490 |
Which vehicle is moving with uniform velocity?
Which of the following figures represent uniform motion of a moving object correctly?
Four cars A, B, C, and D are moving on a levelled road. Their distance versus time graphs are shown in Fig. 8.2. Choose the correct statement.
Distance is a ______ quantity.
