Core stretch A ladder is inclined at $75^\circ$. The point $C$ on it is 7.4 m from its foot \(A\

Question

Core stretch A ladder is inclined at $75^\circ$. The point $C$ on it is 7.4 m from its foot $A$, and a horizontal rod $CD=1.0$ m reaches a vertical wall. Find the horizontal distance from $A$ to the wall. Give non-exact lengths, areas and other numerical values to 3 significant figures, and angles to 1 decimal place, unless otherwise stated. $A$ $C$ $D$ $7.4\text{ m}$ $1.0\text{ m}$ $75^\circ$

Accepted Answer

$\text{Horizontal distance}=7.4\cos75^\circ+1=2.92\text{ m}$.

A ladder in three support configurations

A ladder in three support configurations

Solution:

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