Agust of wind blowing east pushes against a ball. when will the wind do work on the ball?

when the ball moves in the same direction in which the wing blows (to the east).

Explanation:

Work is done when a force causes motion of an object along the same direction as the force acts.

For example, if a person holds up a heavy bowling ball but such person translates the ball horizontally, the motion and the force are perpendicular meaning that person is not doing any work on the ball.

On the other hand, if the person pushes or pulls the ball with a force parallel to the ground (motion), now wor is done:

W = Force × displacement × cos (angle between the force and the displacement)

If the angle is 90°, cos (90°) = 0 ⇒ W = 0.

answer: option c.

explanation:

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.