Introduction to Projectile Motion

When is gravity the strongest?

• At the launch

• Halfway point of the projectile motion

• At the very end of the projectile motion

• Gravity is always constant

When a projectile reaches the highest point which of the following is zero?

• The Acceleration

• The vertical Velocity

• The horizontal velocity

• The Height

At the start of a horizontal projectile motion, what is assumed?

• Gravity is 0

• Initial velocity is 0

• Initial vertical velocity is 0

• Initial horizontal velocity is 0

During what problems can one use the range equation?

• Horizontal Projectile Motion

• Flat Surface Projectile Motion

• Non Flat Surface Projectile Motion

• All of the Above

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The name of the parabolic path of projectile is called the

• Range

• Trajectory

• Maximum Height

• Time of flight

What is Vi?

• The initial velocity of the projectile

• The initial horizontal velocity of the projectile

• The initial vertical velocity of the projectile

• None of the above

For horizontal projectile motion, what is Vi equal to?

• g

• Viy

• Vf

• Vix

When an object is dropped out of a plane, where will the projectile be located in comparison to the plane?

• Behind the plane, because the projectile moves backward

• Directly below it

• In front of the plane

• Behind the plane, because the projectile moves straight down

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If you are sitting in a car and you drop a ball out of the window, what will the path of the ball to the ground look like from your prospective?

• The ball will go backwards

• The ball will go forward

• The ball will drop straight down

• None of the above

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For all projectile motion, what is assumed about velocity in the x direction?

• It is constant throughout the projectile

• It is 0 at the top of the motion

• = 9.8 m/s/s

• It depends on the problem, we cannot assume anything until we see the problem