Draw the velocity-time graphs for the following situations:

(a) When the body is moving with a uniform velocity.

(b) When the body is moving with a variable velocity and uniform acceleration.

(c) When the body is moving with a variable (non-uniform) velocity and uniform deceleration.

(d) When the body is moving with a variable velocity and variable acceleration.

From the diagram calculate

(i) acceleration

(ii) retardation

(iii) distance covered in first 8 seconds

(iv) total distance travelled by the body and

(v) average velocity in the region ACB.

Plot distance-time graph of two cars moving with uniform speeds of $5 \mathrm{m}/\mathrm{s}$ and $7 \mathrm{m}/\mathrm{s}$. Compare the graphs.

Differentiate between speed-time graph and velocity-time graph of a body thrown vertically upward.

$v=u+at$ in mechanics where symbols have their usual meaning.

Write the three equations of motion for

(a) Velocity-time relation (b) Position-time relation (c) Position-velocity relation

Is it possible for a body to have a constant speed but an accelerated motion?