Projectile Motion Review

In projectile motion, the final horizontal velocity is always equal to: 0 m/s -9.8 m/s The initial horizontal velocity None of the above

In projectile motion, if an object is initially only moving horizontally, the initial vertical velocity is always equal to: 0 m/s -9.8 m/s2 The final horizontal velocity None of the above

In projectile motion, the vertical time is always equal to: The horizontal time None of the above

In projectile motion, the vertical displacement is always equal to: The horizontal time Not enough information

A shell is fired at a 30 degree angle upward off a cliff and lands 400m from the base of the cliff. Describe the final vertical velocity. Positive Negative Zero Unable to be determined

A shell is fired at a 30 degree angle upward off a cliff and lands 400m from the base of the cliff. Describe the initial vertical acceleration. Positive Negative Zero Unable to be determined

A shell is fired at a 30 degree angle upward off a cliff and lands 400m from the base of the cliff. Describe the vertical velocity at the peak of its motion. Positive Negative Zero Unable to be determined

A shell is fired at a 30 degree angle upward off a cliff and lands 400m from the base of the cliff. Describe the vertical displacement. Positive Negative Zero Unable to be determined

If an object is fired at an angle, the initial vertical velocity is always equal to: v(cos θ) v(sin θ) -9.8 The initial horizontal velocity None of the above

If an object is fired from the ground at a velocity (v) at an angle and the ground is level, the vertical displacement will equal: 0 m -9.8 m The horizontal displacement None of the above

If an object is fired from the ground at an angle and the ground is level, the final vertical velocity will equal: v(sin θ) v(cos θ) -9.8 -v(sin θ) None of the above

Acceleration due to gravity can be considered -9 Acceleration due to gravity can be considered -9.8 m/s 2 when an object travels: Upward only Downward only Horizontal only Either up or down None of the above

If an object is fired horizontally off a cliff, the initial vertical velocity is: 0 m/s 9.8 m/s -9.8 m/s Cannot be determined

If an object is fired horizontally off a cliff, the vertical acceleration is: 0 m/s2 9.8 m/s2 -9.8 m/s2 Cannot be determined

If an object is fired horizontally off a cliff, the initial horizontal velocity is: 0 m/s 9.8 m/s -9.8 m/s Not enough information

If an object is fired horizontally off a cliff, the final horizontal velocity is: 0 m/s 9.8 m/s -9.8 m/s Same as the initial horizontal velocity Not enough information

If an object is fired horizontally off a cliff, the horizontal acceleration is: 0 m/s2 9.8 m/s2 -9.8 m/s2 Cannot be determined

When compared with the time for the vertical motion, the time for the horizontal motion is: More Less The same Not enough information

What term represents the magnitude of a velocity vector? Acceleration Distance Displacement Speed Momentum

In order to find the height of a projectile, what must be done to the total time (assume symmetrical path)? Multiply time by 2 Cut time in half Nothing Not enough information

A shell is fired at a 30 degree angle upward and hits 200m above the place it was shot on an adjacent mountain. Describe the final vertical velocity. Positive Negative Zero Unable to be determined

A shell is fired at a 30 degree angle upward and hits 200m above the place it was shot on an adjacent mountain. Describe the final horizontal velocity. Positive Negative Zero Unable to be determined