(i) **Acceleration of a body** — As acceleration is equal to the ratio of change in velocity and time taken, therefore, the **slope ( or gradient ) of the velocity-time graph gives the acceleration.**

(ii) **Distance travelled by the body in a given time** — The total distance travelled by the body is obtained by the **arithmetic sum of the positive displacement and negative displacement (without sign).**

(iii) **Displacement of the body** — As the product of velocity and time gives the displacement, therefore, **the area enclosed between the velocity-time sketch and X – axis (i.e., the time axis) gives the displacement of the body.**

**The total displacement is obtained by adding positive displacement and negative displacement numerically with proper sign.**