Question

To calculate the velocity of an object, the _________ of the position vs time graph should be calculated.

Answer 1

The slope of the graph is what you need. That tells you the speed not the velocity. In order to find the velocity you would also need to know the direction of the motion.

Answer 2

By definition we have to:

`image`

Where,

dr / dt: rate of change of the position of an object with respect to time

Therefore, we know that in a position graph with respect to time, both variables are proportional.

The proportionality constant is the speed of the object.

Mathematically, this constant represents the slope of the line.

Answer:

To calculate the velocity of an object, the slope of the position vs. time graph should be calculated.