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Two blocks of masses 1 kg and 2 kg are c...

Two blocks of masses `1 kg` and `2 kg` are connected by a metal wire going over a smooth pulley as shown in figure.
The breaking stress of the metal is `(40//3pi)xx10^(6)N//m^(2)`. If `g=10ms^(-2)`, then what should be the minimum radius of the wire used if it is not to break?

A

`0.5mm`

B

`1mm`

C

`1.5mm`

D

`2mm`

Text Solution

Verified by Experts

The correct Answer is:
B
`T = (2m_(1) m_(2))/(m_(1) + m_(2)), B.S = (T)/(A)`
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