Figure shows a block kept on a rough inclined plane. The maximum external force down the incline for
Channel: Doubtnut
Date: 2020-08-02

Figure shows a block kept on a rough inclined plane. The maximum external force down the incline for which the block remains at rest is 1 N while the maximum external force up the incline for which the block is at rest is 7 N. The coefficient of static friction `mu` is: