To calculate an object's average velocity, you need to know which of the following?

where the object started

the point where the object ended

how long it took the object to get from start to end

all of the above

The correct answer is "All of the above".

Explanation:

The average speed corresponding to an object is defined as the distance traveled by that object divided by the time taken to travel it. To calculate the average speed, all you need to know is the total displacement, calculated as the change in position of the object, plus the total time elapsed in traveling that distance.

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with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.