Determine the quantity of work done when a crane lifts a 100- n block from 2 m above the ground to 6 m above the ground

400 joules.

Explanation:

The minimal force needed to lift a 100N block is a force of 100N.

Now, work is defined as a movement done by a force, so we can write the work as:

W = F*d where F is the force and d is the distance traveled, in this case d = 4m so we have:

W = 100N*4m = 400 joules

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.