Question
A mechanic uses a crowfoot wrench to loosen a bolt at $C .$ Themechanic holds the socket wrench handle at points $A$ and $B$ andapplies forces at these points. Knowing that these forces are equivalent to a force-couple system at $C$ consisting of the force $C=$$-\left(8 \text { lb) i }+\left(4 \text { lb) } k \text { and the couple } M_{C}=(360\text { Ib. in. ) is determine the } \right.\right.$forces applied at $A$ and at $B$ when $A_{i}=2$ lb.
Step 1
For equilibrium in the y direction, we can write $F_{A_y} + F_{B_y} = 0$. Let's call this equation (1). For equilibrium in the x direction, we can write $F_{A_x} + F_{B_x} = 8$. Let's call this equation (2). Show more…
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A mechanic uses a crowfoot wrench to loosen a bolt at $C .$ The mechanic holds the socket wrench handle at points $A$ and $B$ and applies forces at these points. Knowing that these forces are equivalent to a force-couple system at $C$ consisting of the force $C=-(8 ext { lb) i }+(4 ext { lb) } k ext { and the couple } M_{C}=(360 ext { Ib. in. ) i determine the }$ forces applied at $A$ and at $B$ when $A_{i}=2$ lb.
The torque wrench $A B C$ is used to measure the moment or torque applied to a bolt when the bolt is located at $A$ and a force is applied to the handle at $C .$ The mechanic reads the torque on the scale at $B$. If an extension $A O$ of length $d$ is used on the wrench, determine the required scale reading if the desired torque on the bolt at $O$ is to be $M$.
The torque wrench $A B C$ is used to measure the moment or torque applied to a bolt when the bolt is located at $A$ and a force is applied to the handle at $C$. The mechanic reads the torque on the scale at $B$. If an extension $A O$ of length $d$ is used on the wrench, determine the required scale reading if the desired torque on the bolt at $O$ is to be $M$.
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