What information must a person have if they are asked to determine an object's speed?

Responses

period of time and direction

period of time and direction

distance and change in position

distance and change in position

distance and period of time

distance and period of time

distance and direction

1 answer

To determine an object's speed, a person must have the following information:

Distance and period of time

Speed is calculated by dividing the distance traveled by the time it took to travel that distance. The formula is:

\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]

Direction is not needed to calculate speed; it is more relevant when calculating velocity, which is a vector quantity that includes both speed and direction.