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- Thread starter irrehaare
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so nobody know the answer or i wrote quastion to complicated ?

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HallsofIvy

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VietDao29

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Positive direction downward.

Let a

Let a'

Let a'

So the acceleration of m2 with respect to the ground is a

And you have a

Since the mass of the movable pulley is negligible, the resultant force acts on it must be [itex]\vec{0}[/itex].

You can use Newton's 2nd law to solve this problem.

Viet Dao,

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