Here is a question from a study guide \"a ball is thrown upward into the air wit

Question

Here is a question from a study guide "a ball is thrown upward into the air with a speed that isgreater than terminal speed. on the way up it slows down and,after its speed equals the terminal speed but before it gets to thetop of the trajectory:

A) its speed is constant B) it continues to slow down C) it speeds up D) its motion becomes jerky E) none of the above Here is a question from a study guide "a ball is thrown upward into the air with a speed that isgreater than terminal speed. on the way up it slows down and,after its speed equals the terminal speed but before it gets to thetop of the trajectory:

A) its speed is constant B) it continues to slow down C) it speeds up D) its motion becomes jerky E) none of the above

Explanation / Answer

While the ball is going up, there are two forces acting on it - theforce of gravity, which acts downwards, and the air drag, whichalso acts downwards because drag always opposed the direction ofmotion. Since both forces are acting downwards, the ball will slowdown. There is no question of terminal velocity here because wetalk of terminal velocity only when the two forces (drag andgravity) act opposite to each other and that will happen only whenthe ball is falling down. Hence, B.

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