Question

Which answer is a scientifically accurate description of velocity?

Answer 1

Answer : The correct option is (a).

Explanation :

Velocity : It is defined as the rate of change of position with respect to the time. It is a vector quantity.

For the velocity, both magnitude and direction are needed to define it.

The formula of velocity is,

$\text{ Velocity}=\frac{\text{ Change in position}}{Time}$

In option (a), both magnitude and direction are given. But in another options, directions and magnitude are not given.

According to the definition of velocity, the direction and magnitude are the important parameters without these parameters we can not described velocity.

So, the correct option is (a) the car traveled 70 mph north to Atlanta on Interstate 75.

Answer 2

The correct answer for this question would be option D. The answer that is a scientifically accurate description of velocity is this: Walking south along the two-mile canyon trail generally takes less time than traveling the same trail north because walking south is all downhill. Remember that velocity is the measure of the displacement of an object divided by the time. Hope this answer helps.