Q. No.The displacement-time graph for two particles A and B is as follows. The ratio is
(1) 1: 2
(2) 1:
(3) : 1
(4) 1: 3
For the acceleration-time \((a-t)\) graph shown in figure, the change in velocity of particle from \(t=0\) to \(t=6~\text s\) is
1. \(10~\text{m/s}\)
2. \(4~\text{m/s}\)
3. \(12~\text{m/s}\)
4. \(8~\text{m/s}\)
The velocity versus time graph of a body moving in a straight line is as shown in the figure below:
| 1. | The distance covered by the body in \(0\) to \(2~\text{s}\) is \(8~\text{m}\). |
| 2. | The acceleration of the body in \(0\) to \(2~\text{s}\) is \(4~\text{ms}^{-2}\). |
| 3. | The acceleration of the body in \(2\) to \(3~\text{s}\) is \(4~\text{ms}^{-2}\). |
| 4. | The distance moved by the body during \(0\) to \(3~\text{s}\) is \(6~\text{m}\). |
The acceleration-time graph for a particle is given in the figure. If it starts motion at \(t=0\), the distance travelled in \(3\) s will be:
1. \(4~\text{m}\)
2. \(2~\text{m}\)
3. \(0~\text{m}\)
4. \(6~\text{m}\)
Figure shows the position of a particle moving on the x-axis as a function of time
(1) The particle has come to rest 4 times
(2) The velocity at t = 8 s is negative
(3) The velocity remains positive for t = 2 s to t = 6 s
(4) The particle moves with a constant velocity
A particle moves along x-axis in such a way that its x co-ordinate varies with time according to the equation x = 4 - 2t + t2. The velocity of the particle will vary with time as-
(1)
(2)
(3)
(4)
The position (x) of a particle moving along x-axis vares with time (t) as shown in figure. The average acceleration of particle in time interval t=0 to t=8 s is
(1) 3 m/s2
(2) - 5 m/s2
(3) - 4 m/s2
(4) 2.5 m/s2
The position (x)-time (t) graph for a particle moving along a straight line is shown in the figure. The average speed of particle in time interval t=0 to t=8 s is
(1) Zero
(2) 5 m/s
(3) 7.5 m/s
(4) 9.7 m/s
A boat covers certain distance between two spots in a river taking t1 hrs going downstream and t2 hrs going upstream. What time will be taken by boat to cover same distance in still water?
(1)
(2)
(3)
(4)
A train of 150 m length is going towards North a speed of 10 m/s. A bird is flying at 5 m/s parallel to the track towards the South. The time taken by the to the track bird to cross the train is
(1) 10 s
(2) 15 s
(3) 30 s
(4) 12 s
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