Which of the following best states the principle that underlies the…
PHYSICS · Single correct · AP · Physics C: Mechanics · Kinematics · Kinematics
Problem
Which of the following best states the principle that underlies the indistinguishability of gravity and uniform acceleration?
(a) Uniform gravitational acceleration causes all objects to accelerate at the same rate, so gravity and any other force that produces a=9.8m/s2 are identical.
(b) The equality of gravitational and inertial mass guarantees that gravity can be removed in any reference frame.
(c) Motion observed inside a frame that accelerates uniformly with acceleration a cannot be distinguished from motion observed inside a stationary frame immersed in a uniform gravitational field g=−a.},{
(d) Gravitational and electric forces share the same inverse-square dependence on distance, making their effects locally indistinguishable.