Question

Example The rigid bar is supported by the two short wooden posts and a spring. If each of the posts has an unloaded length of 500 mm and a cross-sectional area of 800 mm², and the spring has a stiffness of $k = 1.8 \text{ MN/m}$ and an unstretched length of 520 mm, determine the vertical displacement of A and B after the load is applied to the bar.

          Example
The rigid bar is supported by the two short wooden posts and a spring. If each of the
posts has an unloaded length of 500 mm and a cross-sectional area of 800 mm², and
the spring has a stiffness of $k = 1.8 \text{ MN/m}$ and an unstretched length of 520 mm,
determine the vertical displacement of A and B after the load is applied to the bar.

Example
The rigid bar is supported by the two short wooden posts and a spring. If each of the
posts has an unloaded length of 500 mm and a cross-sectional area of 800 mm², and
the spring has a stiffness of k = 1.8 MN/m and an unstretched length of 520 mm,
determine the vertical displacement of A and B after the load is applied to the bar.

Added by Audrey V.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Umar Sohail Qureshi

Step 1

First, let's calculate the total length of the bar when it is loaded. Since the unloaded length is 500mm and each post has a length of 100mm, the total length of the bar when loaded is 500mm + 100mm + 100mm = 700mm. Show more…

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Example: Determine the vertical displacement of A and B after the load is applied to the bar. The post has an unloaded length of 500mm and a cross-sectional area of 100 mm^2. The rigid bar is supported by two short wooden posts and a spring. If each of the posts has a length of 100mm, calculate the force applied to the bar.