Consider the arrangement shown in figure. The block is initially at rest. Now `theta` is slowly increased (consider `0lt thetha lt 90^(@))`

Statement-1: If sliding starts before toppling and `theta` is kept on increasing even after that then block won't topple thereafter.
Statement-2: Line of action of resultant normal force shifts to keep the block from toppling.

Options

A. Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.
B. Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.
C. Statement-1 is true, statement-2 is false.
D. Statement -1 is false, statement -2 is true.

Answer

A

Explanation

When f is static

`mu=(2x)/h` when f is kinetic and it the block has to be toppled N must shift to end
`muNh//2gtNa//2`
`mu gta/h`
`a gt 2x`
`mu gt mu` not possible itwon't topple.