Answer: d) speed = distance/time
Explanation:
Speed is a measure of how fast an object is moving. It is defined as the distance traveled by an object per unit of time.
The formula for speed reflects this definition. It tells us that to find the speed of an object, we divide the distance it has traveled by the time it took to travel that distance.
So, if an object travels a distance d in a time t, then its speed s is calculated as:
s = d/t
The equation used to find speed is d) speed = distance/time.
