projectile motion

In the diagram, which letter represents the vertical displacement  $\overrightarrow{d}_y$  ?

• A

• B

• C

• D

In the diagram, which letter represents the horizontal displacement $\overrightarrow{d}_x$ ?

• A

• B

• C

• D

A ball rolls off a table top and strikes the floor as shown. Given the measurements made, the time the projectile spent in the air is ---.

• 17 s

• 0.34 s

• 0.58 s

• 0.49 s

A ball rolls off a table and strikes the floor, as shown. If the time the ball spent in the air was 0.58 s, how fast did the ball leave the table?

• 3.6 m/s

• 1.2 m/s

• 2.9 m/s

• 0.99 m/s

Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object will hit the ground first?

• A
• B
• Both objects hit the ground at the same time
• unable to determine with the given information

The more mass an object has, the faster it will fall.

• True
• False

An object is projected horizontally from a cliff.  The time it takes to hit the ground is

• more than if it was just dropped
• less than if it was just dropped
• the same amount of time than if it was just dropped
• impossible to determine

Which angle will produce the greatest range (in the absence of air resistance)?

• 0 degrees
• 45 degrees
• 90 degrees
• none of these

An example of projectile motion is...

• a golf ball being hit
• a rocket
• a water fountain
• all of the above

_{A projectile will accelerate downward because gravity is acting on it's ________________________}

• vertical motion

• horizontal motion

• circular motion

• linear motion