Respuesta :
A 'vector' is a measurement that has a magnitude and a direction.
For the vector given here, "15 ft/s" is the magnitude, and "down" is the direction.
The magnitude of the vector described below "15 ft/s down" is 15 ft/s. The correct option is A.
What is vector?
A vector is the representation of a physical quantity in magnitude and direction.
For the given, "15 ft/s down" representing both the magnitude and direction.
The magnitude is 15 ft/s.
Thus, the correct option is A.
Learn more about vector.
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