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    If the overbridge is concave instead of being convex, the thrust on the road at the lowest position will be
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  • 2
    A body of mass $\mathrm{m}$ is kept on a rough horizontal surface (coefficient of friction $=\mu$ ) A horizontal force is applied on the body, but it does not move. The resultant of normal reaction and the frictional force acting on the object is given by $\mathrm{F},$ where $\mathrm{F}$ is
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  • 3
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  • 4
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  • 5
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  • 6
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