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Question:

Physics problem about TensionPlease Help!?

Physics problem about TensionPlease Help!?

Answer:

Since the bar is in equilibrium, the net force must be zero and the net torque must be zeroNet force 0 TA -TB - ( 75.00 kg ) g - ( 3500 kg ) ( g ) This gives us the relationship between the two tensions TA and TBNow for the torquesI'll arbitrarily select the left end of the bar as my originNow we have Net torque 0 -TA ( 2.000 m ) - TB ( 0 ) - ( 3500 kg ) ( g ) ( 5.600 m ) - ( 75.00 kg ) ( g ) ( 5.800 m / 2 ) You now have two equations in two unknowns, the tensions TA and TBSolve for those tensions.

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