a) Body A weighs 60 lb, has a radius of gyration with respect to a horizontal axis through G of 0.60 ft, and rolls without slipping along the inclined plane. The velocity of B changes from 15 to 6 fps (both upward) after moving upward a distance of 6 ft. Determine the weight of B using Newton's Equations of Mo- tion b) Solve question using the principle of Work & Energy. Which method is easier?

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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.