A block of mass m slides down a rough in...

A block of mass m slides down a rough inclined plane with an acceleration `g/2`

The coefficient of friction `(mu)` between block ans incline is `mu = tan theta - 1/2 sec theta`

Normal reaction on block m is `mg cos theta`

When we increase `mu as mu gt tan theta ,` then acceleration of the block will cease

For the given acceleration , the value of coefficient of friction may vary from `mu = tan theta " to" mu = tan theta - 1/2 sec theta `

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