Answer:Materials Used in Bridge Construction Stones, Timber, Concrete and Steel are the traditional materials that are used to carry out bridge construction. ... Brick was used as a subgroup construction material along with stone construction. Stones as ... This property of steel is an important criterion in the design of structures.
The vector magnitudes F and r are always postive, so the sign o W is determined entirely by the angle e between the force and the displacement.Submit Figure 1 off 1 part C
