Theta 2 is -78 degrees.(Negative 78 Degrees)

Theta 1 and Theta 2 are measured from the x-axis.
 

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For the following general linkage use the data to find the accelerations acg2, acg3, acg4, dynamic force for the system and the moment created at O₂ and O4 by this dynamic force. Follow the convention and assume any missing information logically. Link 1 50 cm 0₁ 20⁰ Link 2 30 cm m₂ 2 kg Y CG2 δεί Φι 0₂ A L2 Link 3 40 cm 0₂ ID 83 83 Link 4 45 cm CG3 L3 L₁ 8₂ 17 cm m3 5 kg $2 20⁰ B 83 25 cm La CG4 04 84 32 cm $3 35⁰ X W₂ -20 rad/s m4 3 kg 30 Ф4 -15° α₂ rad/s² For the following general linkage use the data to find the accelerations acg2, acg3, acg4, dynamic force for the system and the moment created at O₂ and O4 by this dynamic force. Follow the convention and assume any missing information logically. Link 1 50 cm 0₁ 20⁰ Link 2 30 cm m₂ 2 kg Y CG2 δεί Φι 0₂ A L2 Link 3 40 cm 0₂ ID 83 83 Link 4 45 cm CG3 L3 L₁ 8₂ 17 cm m3 5 kg $2 20⁰ B 83 25 cm La CG4 04 84 32 cm $3 35⁰ X W₂ -20 rad/s m4 3 kg 30 Ф4 -15° α₂ rad/s²

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Answer To calculate the accelerations acg2 acg3 acg4 dynamic force for the system and the moments created at 02 and 04 by this dynamic force well need ... View the full answer