Question

Examine the information.

A runner travels 10 m/s forward for 10 seconds.

Which of the quantities in the sentence would be considered a vector quantity, and why?

The quantity 10 m/s is the only vector quantity because it is a measurement of speed.
The quantity 10 s is the only vector quantity because it measures time.
The quantity 10 m/s is the only vector quantity because it is a measurement that includes a direction.
The quantities 10 m/s and 10 s are vector quantities because these numbers are both measurements that do not include direction.

Answer 1

vectors include magnitude & direction so the third option is the correct answer :)

Answer 2

The quantity 10 m/s is the only vector quantity because it is a measurement that includes a direction.

Step-by-step explanation:

Vector quantities are physical quantities with both magnitude (size) and direction. Examples of vectors include displacement, velocity, acceleration, force, momentum etc.

Time is a scalar quantity having only size. So 10 s is not a vector. 10 m/s forwards is velocity because of the direction.