The displacement time graph of a moving particle is shown in the figure below. The instantaneous velocity of the particle is negative at the point:

In the following graph, the distance travelled by the body in metres is:

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

1.		2.
3.		4.

The position (x) of a particle in a straight line motion is given by $\mathrm{x}=2+10\mathrm{t}-5{\mathrm{t}}^2$ $\left(\mathrm{m}\right)$. Its velocity (v) is best represented by?

1.		2.
3.		4.

The velocity-time graph of a body moving in a straight line is shown in the figure. The displacement and distance travelled by the body in 6 seconds are, respectively, : 

1. 8 m, 16 m

2. 16 m, 8 m

3. 16 m, 16 m

4. 8 m, 8 m