Velocity-time Graph

When $v-t$ graph has _____ slope, acceleration is negative.

The graph given below represents _____.

A car of mass $1500 \mathrm{kg}$ is moving with a velocity of $20 \mathrm{m} {\mathrm{s}}^{-1}$. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of the car at the end of $25 \mathrm{s}$ will be:

When $v-t$ graph has negative slope, acceleration is:

The slope of a velocity-time graph gives
 

Four cars A, B, C, and D are moving on a leveled road. Their distance versus time graphs is shown in below figure. Choose the correct statement from the following.

The area under a v – t graph represents a physical quantity which has the unit:

Three speed – time graphs are given below:

Which case represents the case of:
a body decelerating to a constant speed then accelerating uniformly?

In a velocity-time graph, the horizontal straight line indicates :

A teacher assigned a job of converting the position-time graph into a velocity-time graph. All the four Meera, Meena, Trisha and Akshaya plotted the graphs as under. The person to give the correct answer is: