Awheel is rotated about a horizontal axle at a constant angular speed. next it is rotated in the opposite direction with the same angular speed. the acceleration at a point on the top of the wheel in the second case as compared to the acceleration in the first case:

a) Is in the same direction.

Explanation:

Since on both cases the wheel is rotated at a constant angular speed the acceleration will only be the centripetal one, which, as the name implies, will be directed at the center of the wheel, so it will point in the same direction on both situations.

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.