The 30-kg ladder is released from a resting position where 0 = 10°. Both the wall and floor are smooth. Assume the ladder is a slender bar with a length of 4.5 m. What is the initial potential energy? Vị J 652.12 Correct Solution What is the final kinetic energy in terms of w? when 0 = 23° ? T2 w2 J

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