Gradient of line of velocity-time graph is tells us the

Accelerated motion is the rate at which velocity changes. It's equal to the change in velocity divided by the time it takes.  Here are some examples of accelerated motion: Cars: When a driver accelerates a car, you feel pushed back. When the driver takes a sharp turn, you feel pushed to the opposite side. When the driver applies the brakes, you feel forced ahead. Supercars: Supercars can reach high speeds in a few seconds. For example, a supercar that reaches 100 km/hr in 5 seconds.  Acceleration is a vector quantity because it involves magnitude and direction. Acceleration can be either... Show more

Accelerated motion is the rate at which velocity changes. It's equal to the change in velocity divided by the time it takes. 

Here are some examples of accelerated motion:
Cars: When a driver accelerates a car, you feel pushed back. When the driver takes a sharp turn, you feel pushed to the opposite side. When the driver applies the brakes, you feel forced ahead.
Supercars: Supercars can reach high speeds in a few seconds. For example, a supercar that reaches 100 km/hr in 5 seconds. 

Acceleration is a vector quantity because it involves magnitude and direction. Acceleration can be either positive or negative. If the acceleration is negative, the motion is also known as retarded motion. 
Uniform acceleration is constant acceleration, where the velocity of an object changes by a similar measure in each period. An example of uniform acceleration is an object in free fall in a constant gravitational area. 
The rate of change of acceleration is called jerk.

Show less