A Rock Is Thrown at Some Angle Above the Horizontal

question 71

Multiple Choice

A rock is thrown at some angle above the horizontal with a certain velocity. It reaches its highest point and starts falling down. What is the velocity of the rock at the highest point of its trajectory?

• A) 0
• B) 9.8 m/s
• C) It is equal to its initial horizontal velocity.
• D) It is equal to its initial vertical velocity.
• E) It is equal to its initial velocity.

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