Block A of 500-kg mass is subjected to a towing force F= 2000 t^2 + 3000 t N where "t" is in seconds. If the initial velocity of the block is 6 m/s, determine the velocity after 4 seconds. The block is being towed at a surface inclined at 45 degrees and the coefficient of kinetic friction between these is 0.2.

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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.