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Question

An Atwood machine is set up like the figure which is given below.
If m1=4.5kg and m2=6.0kg. What is the acceleration of the system when the masses are released? (Take the value of g=10ms2)

A
107ms2
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B
207ms2
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C
103ms2
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D
203ms2
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Solution

The correct option is A 107ms2
The acceleration of the blocks in the case of Atwood machine is calculated as:
a=(m2m1)gm1+m2 As (m2>m1)
where, m1 and m2 is the mass of block 1 and 2 and g is the acceleration due to gravity.

Here, m1=4.5kg and m2=6.0kg
Therefore,
a=(64.5)×104.5+6=107ms2

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