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प्रश्न
A body when projected up with an initial velocity u goes to a maximum height h in time t and then comes back at the point of projection. The correct statement is ______________
विकल्प
The average velocity is 2 h/t.
The acceleration is zero.
The final velocity on reaching the point of projection is 2 u.
The displacement is zero.
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उत्तर
A body when projected up with an initial velocity u goes to a maximum height h in time t and then comes back at the point of projection. The correct statement is the displacement is zero.
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संबंधित प्रश्न
Under what conditions can a body travel a certain distance and yet its resultant displacement be zero ?
Define displacement. State its unit.
Can displacement be zero even if the distance is not zero? Give one example to explain your answer.
A body at rest is made to fall from the top of a tower. Its displacement at different instants is given in the following table:
| Time (in s) | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 |
| Displacement (in m) | 0.05 | 0.20 | 0.45 | 0.80 | 1.25 | 1.80 |
Draw a displacement-time graph and state whether the motion is uniform or non-uniform?
Figure shows the velocity-time graph of a particle moving in a straight line.
(i) State the nature of motion of particle.
(ii) Find the displacement of particle at t = 6 s.
(iii) Does the particle change its direction of motion?
(iv) Compare the distance travelled by the particle from 0 to 4 s and from 4 s to 6 s.
(v) Find the acceleration from 0 to 4 s and retardation from 4 s to 6 s.
A body starts with an initial velocity of 10m s-1 and acceleration 5 m s-2. Find the distance covered by it in 5 s.
Is distance covered during nth second more than the distance covered in n seconds?
Which of the following figures represent uniform motion of a moving object correctly?
State whether true or false. If false, correct the statement.
Distance covered by a particle never becomes zero but displacement becomes zero.
A quantity that has both magnitude and direction is ______.
