Question

Please answer this..​

Answer 1

Answer:

HI MATE

Step-by-step explanation:

1. An appripriate answer could be "these are providing support to bridge". In the first image there are two pillars holding a bridge of mass M, since gravitaional force is acting downwards thus pillars are bearing a force of 12Mg. In the second image there are four pillars bearing a force of 14Mg.
2. Each pillars has a circular base of radius 20 cm and height 10 cm.
3. pillar is 500 CM the radius of the pillar is 20cm
4. For the purpose of wind or earthquake engineering, columns may be designed to resist lateral forces. Other compression members are often termed "columns" because of the similar stress conditions. Columns are frequently used to support beams or arches on which the upper parts of walls or ceilings rest.
5. Lionel Robbins (1932) developed implications of what has been termed "[p]erhaps the most commonly accepted current definition of the subject": Economics is a science which studies human behaviour as a relationship between ends and scarce means which have alternative uses.