The baseball in the figure below travels through the air. (a) At what point(s) o

Question

The baseball in the figure below travels through the air. 

 

 

 

(a) At what point(s) on its trajectory is the acceleration zero?

The baseball in the figure below travels through the air. (a) At what point(s) on its trajectory is the acceleration zero? Immediately before contact with the ground.Immediately after contact with the bat. At the highest point on its trajectory.The acceleration is never zero.At the lowest point on its trajectory. (b) At what point(s) on its trajectory is the vertical component of the velocity zero? At the lowest point on its trajectory.At the highest point on its trajectory. Immediately before contact with the ground.Immediately after contact with the bat.The vertical component of velocity is never zero. (c) At what point(s) on its trajectory is the force on the ball zero? Immediately after contact with the bat.At the highest point on its trajectory. The force is never zero.At the lowest point on its trajectory.Immediately before contact with the ground. (d) At what point(s) on its trajectory is the speed zero? The speed is never zero.At the lowest point on its trajectory. Immediately before contact with the ground.At the highest point on its trajectory.Immediately after contact with the bat.

Explanation / Answer

a)

The acceleration is never zero

b)

At the highest point on its trajectory.

c)

The force is never zero

d)

The speed is never zero

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