The top end of a two-by-four piece of lumber that is (3.0 mathrm{~m}) long is leaned at
Question:
The top end of a two-by-four piece of lumber that is \(3.0 \mathrm{~m}\) long is leaned at a height of \(1.8 \mathrm{~m}\) against a smooth wall so that the bottom end makes an angle of \(37^{\circ}\) with the floor. If this board has an inertia of \(4.6 \mathrm{~kg}\), what are
(a) the normal force exerted by the floor on it and
\((b)\) the normal force exerted by the wall on it?
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Step by Step Answer:
To solve this problem well use the principles of equilibrium Lets denote h as the height at which th...View the full answer
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