(adsbygoogle = window.adsbygoogle || []).push({}); Another Pulley Question !!

1. The problem statement, all variables and given/known data

This question is with a diagram. There are two masses at the end of each rope on a pulley..according to the diagram Mass-2 (right) is greater than Mass-1 (left). Note that gravity acts on both masses. Thats all they give..the questions are

a) Determine the Net Force acting on the system.

b) What is the total mass of the system.

c) Find the acceleration of the system.

b]2. Relevant equations[/b]

Weight = Mass * Gravity

Force = Mass * Acceleration

3. The attempt at a solution

b)

W1 = m1*g

m1 = W1/g ------(1)

W2 = m2*g

m2 = W2/g ------(2)

(1) + (2) = (W1 + W2)/g

a)

[tex]\Sigma[/tex]F1 = m1*a

T - W1 = (W1/g)*a

T = (W1/g)*a + W1 -------(3)

[tex]\Sigma[/tex]F2 = m2*a

W2 - T = (W2/g)*a

-T = (W2/g)*a - W2

T = W2 - (W2/g)*a -------(4)

Ok now i am all confused with all these equations how do i relate it question (a) and (c) ???

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# Homework Help: Another Pulley Question

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