Solve :

3. The breaking strength of the string connecting wall and block B is 175N, find the maximum magnitude of weight of block A for which the system will be stationary. The block B weighs 700 N (neglect friction) 
(g = 10 m/s2)




A   175 3 N                               B   175 3 2 N C   75 3   N                         D   None   of   these .

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