A man exerts a force of ? on the handle of wheelbarrow. The mass of the wheelbarrow together with its content is 85 ?? with center of mass at ?. For the configuration shown, what force ? must be applied by the man at ? to make the net moment about the tire contact point ? equal to zero? What is the reaction at ?? The wheelbarrow is stationary

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.