A block weighing 10 kg travels down a sm...

A block weighing 10 kg travels down a smooth curved track AB joined to a rough horizontal surface (see the figure.) The rough surface has a friction coefficient of 0.20 with the block. If the block starts slipping on the track from a point 1 m above the horizontal surface, how far will it move on the rough surface?

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Let the block stops as distance `d` from `B`
`K_A+U_A=K_C+U_C+W_f`
`mgh=mumgd`
`d=(h)/(mu)=(1)/(0.2)=5m`

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