Question

5/12
what two things must you know to determine speed?
speed and direction
distance and direction
time and distance
direction and time

Explanation:

The formula for speed is $speed = \frac{distance}{time}$. So to calculate speed, we need to know the distance traveled and the time taken. Direction is related to velocity (a vector quantity), not speed (a scalar quantity), so options with direction are incorrect.

Answer:

C. time and distance