Tricky Glass Problem.....
A tall glass is kept on a table upside down, having some friction. Then glass is made to revolve around itself in clockwise direction, and it is then given a push in forward direction along line 'B' in the figure. So while moving forward what path will it follow?(Assume no toppling.)
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1 solution
While moving forward, frictional force will try to topple the glass, so this will cause normal reaction to shift in front direction. This will increase opposing force in front greater than that of back side of glass, as a result of which it will roll in A direction.