An object is continuously changing its velocity by the same rate. What is true about this object?
a. The object has decreasing acceleration.
b. The object has increasing acceleration.
c. The object has zero acceleration.
d. The object has constant acceleration.

d. The object has constant acceleration.

Explanation:

Acceleration is the rate of change of velocity.  So if the rate of change is the same at all times, then the acceleration is constant.

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.