At any instant, the velocity and acceleration of a particle moving along a straight line are v and a. The speed of the particle is increasing if

If a particle is moving along straight line with increasing speed, then

If a particle is moving along straight line with increasing speed, then

The velocity –position graph of a particle moving along a straight line is shown. Then acceleration of the particle at s = 15 m is :

The velocity –position graph of a particle moving along a straight line is shown. Then acceleration of the particle at s = 15 m is :

The variation of velocity of a particle moving along a straight line is shown in . is .

The variation of velocity of a particle moving along a straight line is shown in . is .

The velocity displacement graph of a particle moving along a straight line is shown in figure. Then the acceleration displacement graph is.

The velocity displacement graph of a particle moving along a straight line is shown in figure. Then the acceleration displacement graph is.

If "v" is the velocity of a particle moving in a straight line and "a" is acceleration of the particle,then the speed of the particle would be decreasing if