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14. A zip wire is shown as the dashed line AC in the diagram.
The zip wire is supported by two vertical posts AB and CD standing on horizontal ground.
CD=2.6 BD=12
The zip wire makes an angle x with the horizontal, as shown in the diagram. The design of the zip wire requires the angle x to be at least 5⁰.
Work out the least possible height of the post $A B$ Give your answer correct to 3 significant figures.

14 A Zip Wire Is Shown As The Dashed Line AC In The Diagram The Zip Wire Is Supported By Two Vertical Posts AB And CD Standing On Horizontal Ground CD26 BD12 Th class=

Sagot :

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