This is in my book. Speed and velocity are defined by the following equations .. Limit statements: The magnitude of an object's velocity approaches its speed as the time interval approaches zero:. Thus, the instantaneous speed of an object is the magnitude of its instantaneous velocity: v = |v|. This is my question/s What is the magnitude? I don't know what the mag. is OR the difference between Ave. speed and instantaneous speed OR between Ave. and Instantaneous Velocity. I know this probably seems like a moron question to you guys but I have just started physics. I cant find a way to 'GET' these equations. Thank you, in advance.