Archimedes is supposed to have said, "give me a place to stand on, and i will move the earth." suppose you had an object with a mass equal to that of earth (5.98 1024 kg), and it experienced gravity equal to that at earth's surface, so that its weight was 5.87 1025 n. if by using a lever you could move this mass with a force of 175 n, what would be the mechanical advantage of the lever?

Mechanical advantage is ration of two forces which shows how much greater force we can get as a result of using lever.



We are given information:

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.