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D. Inclined Plane

h. l. D. Inclined Plane. Inclined Plane sloping surface used to raise objects. E. Screw. Screw inclined plane wrapped in a spiral around a cylinder. F. Wedge. Wedge a moving inclined plane with 1 or 2 sloping sides. F. Wedge. Zipper 2 lower wedges push teeth together

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D. Inclined Plane

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  1. h l D. Inclined Plane • Inclined Plane • sloping surface used to raise objects

  2. E. Screw • Screw • inclined plane wrapped in a spiral around a cylinder

  3. F. Wedge • Wedge • a moving inclined plane with 1 or 2 sloping sides

  4. F. Wedge • Zipper • 2 lower wedges push teeth together • 1 upper wedge pushes teeth apart

  5. Fr l Fe h MA IMA Problems • How much force must be exerted to push a 450 N box up a ramp that is 3 m long and 1.2 m high? GIVEN: Fe = ? Fr = 450 N l = 3 m h = 1.2 m WORK: IMA = l ÷ h IMA = (3 m)÷(1.2 m) IMA = 2.5 Fe = Fr ÷ MA Fe = (450 N)÷(2.5) Fe = 180 N

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