Projectile Motion

If you throw a baseball straight up, what is its velocity at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

If you throw a baseball straight up, what is its acceleration at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

What is the horizontal acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

What is the vertical acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

As an object travels through the air, its vertical velocity 

• changes continuously
• remains the same

When a ball is projected horizontally, what is its initial vertical velocity?

• 10
• 0
• not enough information given

An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees.  Which one has the greater range?   (assume no air resistance)

• 25 degrees
• 65 degrees
• same for both

An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees.  Which one rises to a higher height? (assume no air resistance)

• 25 degrees
• 65 degrees
• same for both

If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?

• Shot Bullet
• Dropped Bullet
• Hit at Same Time

In the diagram, which letter represents the vertical displacement  $\Delta\overrightarrow{y}$  ?

• A

• B

• C

• D