Which statement reagarding the idealized model of motion called free fall is true?
A. A freely falling object has a constant acceleration called the acceleration due to gravity.
B. The idealized model of motion called free fall applies in cases where the distance of the fall is large compared with the radius of the astronomical body on which the fall occurs.
C. The effect of air resistance is factored into the equations of motion in the idealized model called free fall.
D. Free fall only models motion for objects that do not have an initial velocity in the upward direction.
B. The idealized model of motion called free fall applies in cases where the distance of the fall is large compared with the radius of the astronomical body on which the fall occurs. FALSE
C. The effect of air resistance is factored into the equations of motion in the idealized model called free fall. FALSE
D. Free fall only models motion for objects that do not have an initial velocity in the upward direction. FALSE, IT IS FALLING WHILE STILL GOING UPWARD.
To determine which statement regarding the idealized model of motion called free fall is true, let's consider each option and evaluate them:
A. A freely falling object has a constant acceleration called the acceleration due to gravity.
This statement is true. In free fall, the acceleration of an object is constant and equal to the acceleration due to gravity, which is approximately 9.8 meters per second squared on Earth.
B. The idealized model of motion called free fall applies in cases where the distance of the fall is large compared with the radius of the astronomical body on which the fall occurs.
This statement is also true. The idealized model of free fall is most accurate when the distance of the fall is significant compared to the size of the astronomical body. This assumption ensures that the variation in gravitational acceleration due to different distances from the center of the body is negligible.
C. The effect of air resistance is factored into the equations of motion in the idealized model called free fall.
This statement is false. The idealized model of free fall does not consider the impact of air resistance. It assumes a vacuum or ignores the effects of air resistance, making it simpler to analyze and calculate the motion of an object.
D. Free fall only models motion for objects that do not have an initial velocity in the upward direction.
This statement is false. Free fall can model the motion of any object falling solely under the influence of gravity, regardless of any initial velocity in the upward direction.
Therefore, the correct statement is:
A. A freely falling object has a constant acceleration called the acceleration due to gravity.