If a Rock Is Thrown Downward with an Initial Velocity

question 39

Multiple Choice

If a rock is thrown downward with an initial velocity of 8 feet per second, then its velocity , in feet per second, after seconds is given by ​ ​
By how much does velocity increase over a 4-second period?

• A) 32.16 feet per second
• B) 128.09 feet per second
• C) 32.00 feet per second
• D) 128.00 feet per second

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