Question: Section A 1 ) A ( 1 . 5 - mathrm { kg } ) mass slides down along a concave semi

Section A
1) A \(1.5-\mathrm{kg}\) mass slides down along a concave semi-circular incline of radius 18 m . If the mass starts \(45^{\circ}\) above the bottom position, what is the work done by the normal force from the surface?
Section A 1 ) A \ ( 1 . 5 - \ mathrm { kg } \ )

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