Two masses A and B of
30 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
0.2. What is the minimum mass of C that may be placed on A to prevent it from moving?
![1100228_3df0b6773e844a4282f3fa0c412343ab.jpg](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1100228_3df0b6773e844a4282f3fa0c412343ab.jpg)