Question

Find the forces in the members of a jib crane for
given weight.​

Answer 1

Answer:

please mention the given weight

Answer 2

To find the forces in the members of a jib crane for a given weight, we can use Lami’s Theorem.

• Lami’s Theorem states that "if three coplanar concurrent forces are acting on a body and keep the body in equilibrium, then each force is proportional to the sine of the angle between the other two forces."
• The equation for Lami’s Theorem is given by: $\frac{W}{Sin \alpha } = \frac{P}{Sin \beta } = \frac{R}{γ}$, where α, β, and γ are the internal angles contained between the two forces in a vector diagram.
• A "jib crane" is a type of overhead lifting device that is used in a small work area for repetitive and unique lifting tasks.

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