A block of base and height is kept on an inclined plane

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A block of base

10 \text{ cm} \times 10 \text{ cm}

and height

15 \text{ cm}

is kept on an inclined plane. The coefficient of friction between them is

\sqrt{3}

. The inclination

\theta

of this inclined plane from the horizontal plane is gradually increased from

0^\circ

. Then (1) at

\theta = 30^\circ

, the block will start sliding down the plane (2) the block will remain at rest on the plane up to certain

\theta

and then it will topple (3) at

\theta = 60^\circ

, the block will start sliding down the plane and continue to do so at higher angles (4) at

\theta = 60^\circ

, the block will start sliding down the plane and on further increasing

\theta

, it will topple at certain

\theta