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Question

In the figure, all pulleys are massless and strings are light.
Column-IColumn-II(a) 1 kg block(p) will remain stationary(b) 2 kg block(q) will move down(c) 3 kg block(r) will move up(a) 4 kg block(s) 5 m/s2(t) 10 m/s2


A
at,bp,cs,dq
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B
ap,bt,cs,dq
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C
ar,t,bp,cq,dq,s
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D
ar,bp,cq,dp
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Solution

The correct option is C ar,t,bp,cq,dq,s
ar,bp,cq,dp,s


As pulleys are massless,
80=F=2T1T1=40 N
T=T2=T12=40 N
For FBD of 1 kg
20g=aa=10 m/s2
For FBD of 2 kg
202g=aa=0 m/s2
For FBD of 3 kg
3g20=3aa=103 m/s2
For FBD of 4 kg
4g20=4aa=5 m/s2

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