Arock is dropped from a bridge. what happens
to the magnitude of the acceleration and the
speed of the rock as it falls? [neglect friction.]
(1) both acceleration and speed increase.
(2) both acceleration and speed remain the
same.
(3) acceleration increases and speed decreases.
(4) acceleration remains the same and speed
increases.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

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