When discussing motion, velocity is a key concept to understand. Velocity refers to the speed of an object in a specific direction. To calculate the average velocity, one must take into account the ...

Velocity-time graphs show how the velocity (or speed) of a moving object changes with time. These graphs also show if the object is moving at a constant speed or accelerating, decelerating, or still.

Speed-time graphs are very useful when describing the movement of an object. This is a velocity time graph of an object moving in a straight line due North. The displacement of this object is the area ...

Orbital velocity refers to the minimum speed an object must maintain in order to remain in a stable orbit around another body, such as the earth or another celestial object. Understanding how to ...