Question

A crane boom AB is held in position by a steel cables AC and AD, as shown in the sketch below. The crane supports a hanging mass of 2200 kg. Calculate the magnitude of the forces in the boom and cable AC, and also state whether these forces are tension or compression:

Answer 1

Answer:

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Answer 2

Answer:

Explanation:

The Volume of a Cone is given by V = 1/3 π r2 hLoad must be   th. of the origional load.

Given:

A steel wire can support a maximum load of W reaching its elastic limit.

To find:

How much load can another wire made out of identical steel, but with a radius one half the radius of the first wire.

Formula used:

Stess = 

Area of wire =  × (Radius)²

Explanation:

Eatch wire are made up of steel So Stress at elastic point must be same.

Stess for first wire =  =  

Stess for second wire =  

So,

            =  

                 = 

Load must be   th. of the origional load.

To learn more...

1)State hooke's law define elastic limit and modulus of elasticity.