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Block A of weight 500 N and block B of w...

Block `A` of weight `500 N` and block `B` of weight `700 N` are connected by rope pulley system as shown. The largest weight `C` that can be suspended without moving block `A` and `B` is `W`. The coefficient of friction for all plane surfaces of contact is `0.3`. The pulleys are ideal. Find `(W)/(90)`.

A

12

B

22

C

9

D

18

Text Solution

Verified by Experts

The correct Answer is:
C


`3T+0.3xx1200=m_(c)g=W` and `T=mu(500)=0.3xx500`
`W=m_(0)g=810N`.
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