Lever problems. 25 N Llever = 4.0 Lload = 1.5 m a ) You push down on the end of the lever arm. What is the minimum force required to raise this 25 N load? (Ignore friction.) b) When the force found in part a) is applied, the end of the lever arm moves a distance of 20 cm. How high is the load raised? (Ignore friction)