The hoist supports the 145kg engine.  a) Determine magnitude of the force the load creates in member FB, which contains the hydraulic cylinder H. Express your answer to three significant figures and include the appropriate units.    b) Determine magnitude of the force the load creates in member BD.

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Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.