- #1

nuclearfireball_42

- 9

- 2

- Homework Statement
- In the system shown in the figure, there is no friction, the blocks are weightless, the thread is weightless and inextensible, m 1 = 2 kg, m 2 = 4 kg, m 3 = 1 kg. Find the modulus and direction of acceleration of the load with mass m 3 .

- Relevant Equations
- F = ma

The figure :

What I understand from the figure :

T

T

T

- The three masses given all have different mass so each of them has different acceleration

- How do one substitute to obtain the answer for a

- I've tried to substitute to find the value of a

What I understand from the figure :

T

_{1}=m_{1}a_{1}T

_{2}=m_{2}a_{2}T

_{3}-m_{3}g=m_{3}(-a_{3})- The three masses given all have different mass so each of them has different acceleration

- How do one substitute to obtain the answer for a

_{3}?- I've tried to substitute to find the value of a

_{3}, but it seems that I keep getting the answer in terms of the other two terms a_{2}and a_{1}. The same thing happens when I try to solve for a_{2}and a_{1}.