## Tension on Three Blocks

Three blocks are located on a horizontal table. The coefficient of kinetic friction between the blocks and the table is 0.187. They are connected by a massless cord, as shown in the figure below, and pulled to the right. The masses of the three blocks are m1 = 8.0 , m2 = 8.0 , and m3 = 2.5 . The pulling force is equal to T3 = 91.0 .

What is the tension T2?

What is the tension T2?

**7.87×101 N**## Discussion

**Re:**

*Anonymous 2*(Fri Jan 22 03:36:20 pm 2010 (EST))

All you have to do is set up a ratio. Put the mass of all

three blocks together over the total number of N (for me it

was 10.5 kg/ 81 N) and set that equal to the sum of the

mass of the first and second blocks divided by "X" N.

Mine was 10.5 kg/81 N = 10 kg/ xN. So N was equal to about

77 N. Hopefully that makes sense. Good luck!

**NEW**

*Anonymous 1*(Sat Jan 23 01:52:59 pm 2010 (EST))

Thank you sooo much!!