Sections:

Motion in One Dimension, Page 15

Velocity Time Graph for Different Types of Acceleration

Motion is sometimes easier to interpret through graphical representation. The following graph represents three different types of acceleration:

Graph of different types of acceleration

Constant Positive Acceleration 

During the interval between A and B, the velocity of the object increases at a constant rate. The slope of the graph is positive.

Constant Negative Acceleration 

During the interval between C and D, the velocity of the object decreases at a constant rate. The slope of the graph is negative.

Zero Acceleration 

During the interval between B and C, the velocity of the object does not change. The slope of the graph is zero.