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Question: not sure how to start solve for the unknown forces...

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Not sure how to start/ solve for the unknown forces
Problem 3.2-6 Draw the free-body diagram of the vehicle, which has a mass of 5 Mg and center of mass at G. The tires are free to roll, so rolling resistance can be neglected. 0.3 m 1 m 1.75 mi 20 Solution 1. Imagine the vehicle to be separated or detached from the system. 2. There are smooth contacts at A and B. Use Table 2.1 (6) to determine the number and types of reactions acting on the vehicle at A and IB 3. The vehicle is subjected to four external forces They are caused by: il iv. 4. Draw the free-body diagram of the (detached) vehicle showing all these forces labeled with their magnitudes and directions Assume the sense of the vectors representing the reactions acting on the vehicle (the correct sense will always emerge from the equilibrium equations for the vehicle). Include any other relevant information eg. lengths, angles etc. which may help when formulating the equilibrium equations (including the moment equation) for the vehicle
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