What is the magnitude of the vector described below?

"75 mph to the north"

A. North

B. Hours

C. 75 mph

D. Miles per hour

There are two types of 'quantities' namely: scalar and vector

A 'vector' is a quantity that has both magnitude and direction whereas a 'scalar' has only magnitude.

Magnitude is a measure or the size of the quantity or object.

In the given example of the vector: '75 mph to the north'

Magnitude is the number 75 mph

Direction is north

Ans C)

its 75 mph because 75 is the quantity