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Question

# An Atwood machine is set up like the figure which is given below. If m1=6.0kg and m2=4.5kg. What is the acceleration of the system when the masses are released? (Take the value of g=10msâˆ’2)

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 107ms−2Generally the acceleration of the blocks in the case of Atwood machine is calculated as: a=(m2−m1)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=6kg and m2=4.5kg Therefore, a=(4.5−6)×104.5+6=−107ms−2

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