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A 6.0-m board is leaning against a wall. A 28° angle is formed with the WALL What is the height above the ground where the board makes contact with the wall? (In Meters)

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InesWalston

Answer:

the height above the ground where  the board makes contact with the wall equals 5.297 meters above ground.

Explanation:

The wall and ladder are shown in the attached figure

In the figure we can see that

[tex]cos(28^{o})=\frac{H}{L}\\\\cos(28^{o})=\frac{H}{6}\\\\\therefore H=6.0\times cos(28^{o})==5.297meters[/tex]

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