A body is projected vertically upward from ground. If we neglect the effect of air, then which one of te following is the best representation of variation of speed (v) with timw (t) ?

(1) 

(2) 

(3) 

(4)

Which one of the following displacement-time graph represents two moving objects \(P\) and \(Q\) with zero relative velocity?

1.		2.
3.		4.

The displacement-time graph for two particles A and B is as follows. The ratio $\frac{v_A}{v_B}$ is

(1) 1: 2

(2) 1: $\sqrt{3}$

(3) $\sqrt{3}$: 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:

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