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5. The acceleration of an object due to gravity m/s². a. 9.8 c. 8.9 b. 9.10 d. 0 6. Which of the following is NOT an example of a projectile motion? a. A car moving in a straight line b. A bullet fired from a rifle c. A piece of stone thrown in any direction 7. Suppose a rescue airplane drops a relief package while it is moving with a constant horizontal speed at an elevated height. Assuming that air resistance is negligible, where will the relief package land relative to the plane? a. below the plane and behind it. b. directly below the plane c. below the plane and ahead of it 8. For instance, in a horizontally launched object from an elevated area, which of the following may describe its motion? a. The horizontal velocity remains constant during the course of the trajectory and the vertical velocity changes by 9.8 m/s every second. b. The horizontal velocity remains constant during the course of the trajectory and the vertical velocity also remains constant all throughout its trajectory. c. The horizontal velocity changes to 9.8 m/s every second during the course of the trajectory and the vertical velocity remains constant. 9. What will happen to a cannonball when released upward at an angle in the absence of gravity? a. The object will still follow a curve path downward. b. The object will go back and forth to the cannon. c. The object will continue moving through space in the absence of gravity. 10. When solving projectile problems, we assume that we are operating in a vacuum. This means there is NO _. a. Gravity c. No mass b. Air resistance d. Force

          5. The acceleration of an object due to gravity ____ m/s².
a. 9.8
c. 8.9
b. 9.10
d. 0
6. Which of the following is NOT an example of a projectile motion?
a. A car moving in a straight line
b. A bullet fired from a rifle
c. A piece of stone thrown in any direction
7. Suppose a rescue airplane drops a
relief package while it is moving with
a constant horizontal speed at an
elevated height. Assuming that air
resistance is negligible, where will
the relief package land relative to
the plane?
a. below the plane and behind it.
b. directly below the plane
c. below the plane and ahead of it
8. For instance, in a horizontally launched object from an elevated area, which of
the following may describe its motion?
a. The horizontal velocity remains constant during the course of the
trajectory and the vertical velocity changes by 9.8 m/s every second.
b. The horizontal velocity remains constant during the course of the
trajectory and the vertical velocity also remains constant all throughout
its trajectory.
c. The horizontal velocity changes to 9.8 m/s every second during the
course of the trajectory and the vertical velocity remains constant.
9. What will happen to a cannonball when released upward at an angle in the
absence of gravity?
a. The object will still follow a curve path downward.
b. The object will go back and forth to the cannon.
c. The object will continue moving through space in the absence of
gravity.
10. When solving projectile problems, we assume that we are operating in a
vacuum. This means there is NO _____.
a. Gravity
c. No mass
b. Air resistance
d. Force

5. The acceleration of an object due to gravity m/s².
a. 9.8
c. 8.9
b. 9.10
d. 0
6. Which of the following is NOT an example of a projectile motion?
a. A car moving in a straight line
b. A bullet fired from a rifle
c. A piece of stone thrown in any direction
7. Suppose a rescue airplane drops a
relief package while it is moving with
a constant horizontal speed at an
elevated height. Assuming that air
resistance is negligible, where will
the relief package land relative to
the plane?
a. below the plane and behind it.
b. directly below the plane
c. below the plane and ahead of it
8. For instance, in a horizontally launched object from an elevated area, which of
the following may describe its motion?
a. The horizontal velocity remains constant during the course of the
trajectory and the vertical velocity changes by 9.8 m/s every second.
b. The horizontal velocity remains constant during the course of the
trajectory and the vertical velocity also remains constant all throughout
its trajectory.
c. The horizontal velocity changes to 9.8 m/s every second during the
course of the trajectory and the vertical velocity remains constant.
9. What will happen to a cannonball when released upward at an angle in the
absence of gravity?
a. The object will still follow a curve path downward.
b. The object will go back and forth to the cannon.
c. The object will continue moving through space in the absence of
gravity.
10. When solving projectile problems, we assume that we are operating in a
vacuum. This means there is NO .
a. Gravity
c. No mass
b. Air resistance
d. Force

Added by Rebecca H.

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