Landscapers are putting in the final touches on a new park with plants and trees, but they need to move a large tree. This task requires a lever. Which of the following levers would give them the MOST mechanical advantage for lifting the 500 kg tree?

Uncle grandma

Iwould say a is accurate

Did you ever figure out the right answers since you asked?

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.