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Two masses A and B of 15 kg and 10 kg ar...

Two masses A and B of 15 kg and 10 kg are connected with a string passing over a frictionless pulley fixed at the corner of a table (as shown in figure).The coefficient of friction between the table and block is 0.4. The minimum mass of C, that may be placed on A to prevent it from moving is :

A

10 kg

B

5 kg

C

zero

D

15 kg

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The correct Answer is:
A
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