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Classical Mechanics

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Radius of Curvature: A Tilting Helicopter

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While travelling in a horizontal plane at a constant speed of $40 \space m/s$, a police helicopter is making a turn by tilting its axis at $35^o$ with respect to the vertical (see the figure below). Assume that the weight, $mg$, and the lift, $F_L$, are the only forces acting on the helicopter.