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- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019v2/Book%3A_Custom_Physics_textbook_for_JJC/04%3A_Motion_Along_a_Straight_Line_-_with_Vectors/4.07%3A_Free_FallAn object in free fall experiences constant acceleration if air resistance is negligible. On Earth, all free-falling objects have an acceleration g due to gravity, which averages g = 9.81 m/s^2. For o...An object in free fall experiences constant acceleration if air resistance is negligible. On Earth, all free-falling objects have an acceleration g due to gravity, which averages g = 9.81 m/s^2. For objects in free fall, the upward direction is normally taken as positive for displacement, velocity, and acceleration.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019v2/Book%3A_Custom_Physics_textbook_for_JJC/06%3A_The_Laws_of_Motion/6.12%3A_Mass_and_WeightCareful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from t...Careful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from the air acts on all falling objects on Earth, so they can never truly be in free fall.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Physics_I_(2211)/02%3A_Kinematics_Quantities/2.06%3A_Free_FallThe fuse is timed to ignite the shell just as it reaches its highest point above the ground. (a) Calculate the height at which the shell explodes. (b) How much time passes between the launch of the sh...The fuse is timed to ignite the shell just as it reaches its highest point above the ground. (a) Calculate the height at which the shell explodes. (b) How much time passes between the launch of the shell and the explosion? (c) What is the horizontal displacement of the shell when it explodes? (d) What is the total displacement from the point of launch to the highest point?
- https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_(OpenStax)/Book%3A_University_Physics_I_-_Mechanics_Sound_Oscillations_and_Waves_(OpenStax)/05%3A_Newton's_Laws_of_Motion/5.05%3A_Mass_and_WeightCareful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from t...Careful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from the air acts on all falling objects on Earth, so they can never truly be in free fall.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/05%3A_Book-_Physics_(Boundless)/5.02%3A_Kinematics/5.2.05%3A_Free-Falling_ObjectsFree fall is the motion of a body where its weight is the only force acting on an object.
- https://phys.libretexts.org/Courses/Chicago_State_University/PH_S_1150%3A_Basic_Astronomy/10%3A_General_Relativity/10.01%3A_Einsteins_Equivalence_PrincipleIt takes a little bit of time for the front of the ship to know that the back of the ship is being accelerated forward by the rocket engines, but that is not the same as the tidal effect of gravity.) ...It takes a little bit of time for the front of the ship to know that the back of the ship is being accelerated forward by the rocket engines, but that is not the same as the tidal effect of gravity.) The lack of a tidal effect can distinguish an accelerating reference frame from one in a gravitational acceleration.
- https://phys.libretexts.org/Courses/Muhlenberg_College/MC%3A_Physics_121_-_General_Physics_I/02%3A_Motion_Along_a_Straight_Line/2.07%3A_Free_FallAn object in free fall experiences constant acceleration if air resistance is negligible. On Earth, all free-falling objects have an acceleration g due to gravity, which averages g = 9.81 m/s^2. For o...An object in free fall experiences constant acceleration if air resistance is negligible. On Earth, all free-falling objects have an acceleration g due to gravity, which averages g = 9.81 m/s^2. For objects in free fall, the upward direction is normally taken as positive for displacement, velocity, and acceleration.
- https://phys.libretexts.org/Workbench/PH_245_Textbook_V2/02%3A_Module_1-_One-Dimensional_Kinematics/2.01%3A_Objective_1.a./2.1.06%3A_Free_FallAn object in free fall experiences constant acceleration if air resistance is negligible. On Earth, all free-falling objects have an acceleration g due to gravity, which averages g = 9.81 m/s^2. For o...An object in free fall experiences constant acceleration if air resistance is negligible. On Earth, all free-falling objects have an acceleration g due to gravity, which averages g = 9.81 m/s^2. For objects in free fall, the upward direction is normally taken as positive for displacement, velocity, and acceleration.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019/Book%3A_Physics_(Boundless)/05%3A_The_Laws_of_Motion/5.12%3A_Mass_and_WeightCareful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from t...Careful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from the air acts on all falling objects on Earth, so they can never truly be in free fall.
- https://phys.libretexts.org/Bookshelves/Astronomy__Cosmology/Big_Ideas_in_Cosmology_(Coble_et_al.)/10%3A_General_Relativity/10.01%3A_Einsteins_Equivalence_PrincipleRecall that special relativity deals with unaccelerated motion. Its natural extension, therefore, is to try to describe what happens when motion (or frames of reference) are accelerated. Such a theory...Recall that special relativity deals with unaccelerated motion. Its natural extension, therefore, is to try to describe what happens when motion (or frames of reference) are accelerated. Such a theory would be more general than one limited to uniform motion. It might therefore be called the general theory of relativity — and so it is.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019v2/Book%3A_Custom_Physics_textbook_for_JJC/02%3A_Kinematics/2.5%3A_Free-Falling_ObjectsFree fall is the motion of a body where its weight is the only force acting on an object.
