When a Rock Thrown Straight Upwards Gets to the Exact

question 15

Multiple Choice

When a rock thrown straight upwards gets to the exact top of its path,its

• A)velocity is zero and its acceleration is zero.
• B)velocity is zero and its acceleration is about 10 meters per second per second.
• C)velocity is about 10 m/s and its acceleration is zero.
• D)velocity is about 10 m/s and its acceleration is about 10 meters per second per second.
• E)none of these

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