Answer to Question #69298 in Physics for Gabriela Milhet

Question

The wheelbarrow is an example of a second class lever. The fulcrum of a 19.6 kg wheelbarrow is located at the wheel. The wheelbarrow holds 47.4 kg of rocks and the center of mass of the wheelbarrow+rocks is 0.30 meters from the wheel. The upward force a person must exert at the end of the handles which are 0.6 m from the wheel in order to just lift the handles off the ground is ____ N.