A rough vertical board has an accelerati...

A rough vertical board has an acceleration `a` so that a 2 kg block pressing against it dows not fall. The coefficient of friction between the block and the board should be

`gtg//a`

`lt g//a`

`=g//a`

`gta//g`

Text Solution

Verified by Experts

The correct Answer is:

`muNuarr=mgdarr" …(i)"`
`N=ma" ….(ii)"`

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