Question

question:
whats the speed at a particular moment in time called?

answer options:
select one of four

constant speed\tuniform speed

variable speed\tinstantaneous speed

Explanation:

To determine the correct answer, we analyze each option:

• Constant speed: Speed that remains the same over time, not at a particular moment.
• Uniform speed: Similar to constant speed, refers to consistent speed over an interval, not a moment.
• Variable speed: Speed that changes over time, not specific to a moment.
• Instantaneous speed: By definition, it is the speed of an object at a specific (particular) moment in time.

Answer:

D. Instantaneous speed