(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A pulley is massless and frictionless. 3 kg, 2 kg, and 6 kg masses are suspended on a pulley.

(a)What is the tension T1 in the string between the two blocks on the left-hand side of the pulley?

(b)What is the magnitude of the acceleration of the lower left-hand block?

2. Relevant equations

I solved for (a) using the equations:

T2-m1g=m1a

m2g+T1-T2=m2a

m3g-T1=m3a

3. The attempt at a solution

the combining those equations:

-m1g+m2g+m3g=m1a+m2a+m3a

then I solved for a

-29.4+19.6+58.8=11a

a=4.45455 m/s^2

then plugged into T1=m3g-m3a and got T1=32.0727N (right

for part (b) I thought that I already had a since I needed it to slove for T1, but it is wrong...

So does the lower left-hand block have a different acceleration?

Also, I tried putting in -4.45455 m/s^2 since m3 is 6kg and ways more than m1 and m2 combined... also didn't work

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# Homework Help: Three masses suspended on pulley

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