The Figure Shows the Speed as a Function of Time

question 91

Multiple Choice

The figure shows the speed as a function of time for an object in free fall near the surface of the earth. The object was dropped from rest in a long evacuated cylinder.
-Which one of the following statements best explains why the graph goes through the origin?

• A)The object was in a vacuum.
• B)The object was dropped from rest.
• C)The velocity of the object was constant.
• D)All v vs. t curves pass through the origin.
• E)The acceleration of the object was constant.

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