Find tension?

Question

I asked this question about 40 mins ago, and I got the accelerations for both, but I cant get the tension force? I got 78.4 but the problem says that it isnt right, I dont know what it could be, I tried including g just incase but it said 186.2 was wrong too, any help?

An object with mass m1 = 3.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m2 = 8.0 kg, as shown in Figure P4.30. Find the acceleration of each object and the tension in the cable.

http://i165.photobucket.com/albums/u78/RLB31384/p4-30.gif

the acceleration is 7.127272727ms^2 for both

Answer 1

II use A FBD of each to solve these types of problems. I will assume that the cable and pulley are massless

FBD for m1

m1*a=T
FBD for m2
m2*a=m2*g-T

a=(m2*g)/(m2+m1)

a=8*9.8/11

a=7.127 m/s^2

T=3*a

T=21.38 N

j

Answer 2

yet my philosophy says stress dene ka nahi lene ka, khushiya lene ka nahi dene ka you will continuously sense extra advantageous, none can b happy via giving stress different except giver is evil...