1. | \(68\) m | 2. | \(56\) m |
3. | \(60\) m | 4. | \(64\) m |
1. | 2. | ||
3. | 4. |
The figure given below shows the displacement and time, \((x\text -t)\) graph of a particle moving along a straight line:
The correct statement, about the motion of the particle, is:
1. | the particle moves at a constant velocity up to a time \(t_0\) and then stops. |
2. | the particle is accelerated throughout its motion. |
3. | the particle is accelerated continuously for time \(t_0\) then moves with constant velocity. |
4. | the particle is at rest. |
A stone is thrown vertically downwards with an initial velocity of \(40\) m/s from the top of a building. If it reaches the ground with a velocity of \(60\) m/s, then the height of the building is: (take \(g=10\) m/s2)
1. \(120\) m
2. \(140\) m
3. \(80\) m
4. \(100\) m
1. | 2. | ||
3. | 4. |
1. | \(5~\text{m}\) | 2. | \(25~\text{m}\) |
3. | \(45~\text{m}\) | 4. | \(58~\text{m}\) |