What mathematical formula represents speed?

The formula that accurately represents speed is derived from the relationship between distance and time. Speed is defined as the rate at which an object covers distance. Mathematically, this is expressed as the distance traveled divided by the time it takes to travel that distance. Therefore, the correct formula for speed is distance divided by time.

In practical terms, if a vehicle travels 100 miles in 2 hours, its speed can be calculated by dividing the distance (100 miles) by the time (2 hours), which results in a speed of 50 miles per hour.

The other options do not represent speed. Force divided by time does not relate to the concept of speed. Distance multiplied by time does not yield a meaningful measurement regarding motion as it would give a value representing distance multiplied by a scalar time-factor. Weight divided by volume results in density, which does not pertain to speed at all. Thus, the formula for speed is appropriately represented as distance divided by time.