A block of mass 4kg is released from the...

A block of mass `4kg` is released from the top of a rough inclines plane of height `10 m`. If velocity of the block is` 10 m/s` at the bottom of the inclined then work done by the friction force on the block will be

`+200 J`

`+100 J`

`-200 J`

`-100 J`

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