F2 <------[ M ]---T---[ m ]----> F1(adsbygoogle = window.adsbygoogle || []).push({});

F2 = 20 N

M = 2.0 kg

m = 1.0 kg

F1 = 30 N

Find T, tension.

So F1-F2 = (M+m)a.

a=10/3 = 3.3 m/s^2

Fnet= Ma

T-F2 = Ma

T = Ma + F2 = 2.0(3.3) + 20 = 27 N

However, I don't think this is right because I got a different answer when I used the other block:

Fnet = ma

F1 - T2 = ma

T2 = F1 - ma = 30-1.0(9.8) = 20 N

Where did I go wrong? Thanks.

edit: Never mind. Figured out I used g instead of a.

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# Homework Help: Tension problem

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