What can you say about the motion of a body if its displacement$-$time graph is a straight line parallel to the time axis?

What is the nature of the displacement-time graph of a body moving with constant acceleration?

What determines the direction of motion of an object: velocity or acceleration?

$A$ frog hops along a straight line path from point $A$ to point $B$ in $10 \, s$ and then turns and hops to point $C$ in another $5 \, s$. Based on the provided number line,calculate the average speed and average velocity of the frog for the motion between: $(a)$ $A$ to $B$ $(b)$ $A$ to $C$ (through $B$).

The distance-time graph of a body is a straight line inclined to the time axis. The body is in:

$A$ body moving with uniform acceleration has velocities $20 \, m/s$ and $30 \, m/s$ when passing two points $A$ and $B$. Then the velocity midway between $A$ and $B$ is: