A ladder 285 m long weighing 228 n initially lies flat on
A ladder 2.85 m long, weighing 228 N, initially lies flat on the ground. The ladder is raised to a vertical position. Compute the work done by the force lifting the ladder. The ladder's center of gravity is at its geometric center.
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a a 105 kg mass is at the center of a uniform spherical shell of mass 110 x 1020 kg and radius 103 x 106 m find the
a ladder 285 m long weighing 228 n initially lies flat on the ground the ladder is raised to a vertical position
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