A block A kept on an inclined surface just begins to slide if the inclination is 30°. The block is replaced by another block B and it is found that it just begins to slide if the inclination is 40 o .

Question

Philoid · Accepted Answer

All three situations are possible. It is because when the body starts sliding, the coefficient of static friction μ becomes equal to tan θ, irrespective of their masses.

A block A kept on an inclined surface just begins to slide if the inclination is 30°. The block is replaced by another block B and it is found that it just begins to slide if the inclination is 40o.

A block A kept on an inclined surface just begins to slide if the inclination is 30°. The block is replaced by another block B and it is found that it just begins to slide if the inclination is 40^o.