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Question

Two blocks each of mass m lie on a smooth table. They are attached to two other masses as shown in figure. The pulleys and string are light. An object O is kept at rest on the table. The slides AB & CD of the two blocks are made reflecting. The acceleration of two images formed in those two reflecting surfaces w.r.t each other is:
1031075_2e947b11f75843d6ae4871d2b17817c7.png

A
5g/6
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B
5g/3
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C
g/3
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D
17g/6
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Solution

The correct option is D 17g/6
acceleration of the left side blocks is al=2g3
acceleration of the right side blocks is ar=3g4
acceleration of left side block with respect to right side block =alr=alar=2g3(3g4)=17g6

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