P03 - Projectile Motion Part 2 (Vertical Launch)

During a vertical launch what remains constant?

• horizontal velocity

• acceleration (gravity)

• vertical velocity

• displacement

During a vertical launch what decreases as it goes up, and increases as it goes down?

• horizontal velocity

• acceleration (gravity)

• vertical velocity

• displacement

During a vertical launch, what is an object's vertical velocity at it's highest point?

• 0 m/s

• 0 m/s²

• 0 s

• not enough information to answer

Which angle projects an object to the greatest horizontal displacement?

• 45°

• 30°

• 15°

• 0°

• 90°

Which angle projects an object to the greatest vertical displacement?

• 45°

• 60°

• 15°

• 0°

• 90°

During a vertical launch, what happens when we increase initial velocity?

• nothing changes

• horizontal displacement increases

• acceleration increases

• not enough information to answer

During a vertical launch, what is the total velocity at maximum height?

• v total = 0 m/s

• v total = horizontal velocity only

• v total = horizontal velocity + vertical velocity

• v total = square root of horizontal velocity squared + vertical velocity squared

During a vertical launch, what is the horizontal velocity at maximum height?

• 0 m/s

• it is equal to the initial horizontal velocity

• 9.81 m/s

• not enough information to answer

How many forces act on a projectile after it is launched? (when we ignore air resistance)

• 1 - force of gravity

• 4 - F_gravity, F_normal, F_applied, F_friction

• 0 - no forces act on a projected object

• 3 - F_gravity, F_applied, F_friction

When shooting a cannon, what can be done to increase the horizontal distance of the cannonball?

• move the cannon back

• change the angle to 15°

• change the angle to 90°

• change the angle to 45°

• reduce the mass of the cannonball