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Question
Define displacement. State its unit.
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Solution
The shortest distance from the initial to the final position of the body is called the magnitude of displacement. It is in the direction from the initial position to the final position.
Its SI unit is metre (m).
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RELATED QUESTIONS
What can you say about the nature of motion of a body if its displacement-time graph is A straight line parallel to the time axis?
Figure (a) shows the velocity-time graph for the motion of a body. Use it to find the displacement of the body at t = 1 s, 2 s, 3 s and 4 s, then draw on Figure (b), the displacement-time graph for it.
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| (a) | (b) |
A body starts from rest with uniform acceleration 2 m s-2. Find the distance covered by the body in 2 s.
From the displacement – time graph shown given below calculate:
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- Displacement from the initial position at the end of 13 s.
- Time after which the body is at the initial position,
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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.
Match the following.
| 1. | Displacement | Knot |
| 2. | Light travelling through vacuum | Geometric centre |
| 3. | Speed of ship | Metre |
| 4. | Centre of gravity of geometrical shaped objects | Larger base area |
| 5. | Stability | Uniform velocity |
The displacement is zero when the initial and final positions are ______.
A quantity that has both magnitude and direction is ______.
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