Question

avg velocity = (initial velocity + final velocity) / 2 avg velocity = displacement / total time which formulas are used for which purposes

Answer 1

Explanation:

• Suppose an object is in motion, the position of that object changes with time. But how fast is the position changing with time and in what direction? To understand this, we define average velocity and average speed.Average velocity is the ratio of total displacement to total time. Its direction is the same as the direction of the moving object. Even if the object is slowing down, and the magnitude of the velocity is decreasing, its direction would be still the same as the direction in which the object is moving. The magnitude of average velocity is always less than or equal to the average speed because displacement is always smaller than or equal to distance.

is a vector quantity and has units of m/s

Average velocity = \frac{Total Displacement}{Total Time}

TotalTime

TotalDisplacement

The average velocity of the particle can be positive as well as negative and its positive and negative value depends on the sign of displacement. If the displacement of the particle is zero its average velocity is also zero.