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Tension, 2 masses, 2 cords hanging vertical 
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#1
Oct609, 08:16 PM

P: 2

Two blocks each of mass m = 3.50 kg are fastened to the top of an elevator as in the figure below. this is a horizontal version cuz im on a comp. [top of elevator]string1[block #1 3.5kg]string2[block #2 3.5kg]
(a) If the elevator accelerates upward at 1.6 m/s2, find the tensions T1 and T2 in the upper and lower strings. (b) If the strings can withstand a maximum tension of 87.0 N, what maximum acceleration can the elevator have before the first string breaks? m/s2 first time here, HELP! 


#2
Oct609, 08:54 PM

P: 329

You can start by drawing the free body diagram of the individual strings



#3
Oct609, 09:05 PM

P: 2

I did, but I need some serious help aka answer. I have 2 free body diagrams.
Can you give me the formulas to complete the question.. also using it as a template for other problems thanks 


#4
Oct609, 09:12 PM

P: 329

Tension, 2 masses, 2 cords hanging vertical
Well the only 'template' i can think of will be [tex]\sum F[/tex]=ma where F is all the forces acting on a object. For your case Tmg=0 when they are in equilibrium aka not moving and Tmg=ma when they are moving and the 'a' will be the acceleration of the object.



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