Assume the player is initially moving in the positive x-direction. For the first

Question

Assume the player is initially moving in the positive x-direction. For the first 2.0 s, the ballplayer moves in the positive x-direction (the velocity is positive) and steadily accelerates (the curve is steadily rising) to a maximum speed of 4.0 m/s. He moves for 1.0 s at a steady speed of 4.0 m/s and then slows down in the last second (the v vs. t curve is falling), still moving in the positive x-direction (v is always positive). Can a tangent line to a velocity vs. time graph ever be vertical? Explain. (Select all that apply.) No. It would correspond to a negative instantaneous acceleration. It would correspond to an infinite instantaneous acceleration. It would correspond to a reasonable positive instantaneous acceleration. Yes. It would correspond to zero instantaneous acceleration.

Explanation / Answer

Restating the answer already provided: No, because it would correspond to and infinite instantaneous acceleration

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