Finding the tension in a string

[hansel13]

Homework Statement

Two blocks weighing 250 N and 350 N are connected by a string that passes over a massless pulley. What is the tension in the string?

Homework Equations

T= (2*m₁*m₂)/(m₁+m₂)*9.8m/s²

The Attempt at a Solution

m₁ = 250/9.8 = 25.5
m₂ = 350/9.8 = 35.7

T = (2*25.5*35.7)/(25.5+35.7)*9.8 = 291 N

Doesn't seem right. Can someone tell me what I did wrong?

 

[Redbelly98]

It looks right to me. The tension is somewhere in between the two weights, as it should be.

Just watch the sig figs, if your teacher (hopefully) cares about that.

 

[hansel13]

Alright, well the answer is 290 so I probably just rounded off too much (like you said).

I was just wondering if I used the right formula but it seems that I did.

Thanks