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# I am not understanding what is magnitudeI have sent this answer in morning and i dont got the aanswer.Please send me answers to my questions it is for my future.

Apoorva Arora IIT Roorkee
6 years ago
Magnitude is simply the "size" of a quantity. Magnitudes are expressed in numerical form; e.g., 450, 0.45, 2/3, etc. It is related to scalar quantity in physics as follows.

A common example of scalar is speed. If a man is driving at a speed of 50 km/h, we say the magnitude of the scalar quantity is 50. Notice that the sentence "I am driving 50" is incomplete. Therefore, the magnitude is equipped with a unit, in this case km/h (kilometres per hour).

A vector example is velocity, which is simply speed with a direction. If a plane is traveling at 240 m/s [East], then the magnitude of its velocity is 240 m/s, just like what the magnitude of its speed would be. But, since velocity is a vector, you must include the direction as well.

I hope this will make u understand.