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Three blocks are connected as shown, on a horizontal
\( \mathrm{P} \) frictionless table and pulled to the right with a force \( 60 \mathrm{~N} \). If \( m_{1}=10 \mathrm{~kg}, m_{2}=20 \mathrm{~kg} \) and \( m_{3}=30 \mathrm{~kg} \), the
W tension \( T_{2} \) is -
(1) \( 10 \mathrm{~N} \)
(2) \( 20 \mathrm{~N} \)
(3) \( 30 \mathrm{~N} \)
(4) \( 60 \mathrm{~N} \)
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