A horizontal force F is applied to applied to a homogeneous rectangular block of massm, width b and height H. The block moves with constant velocity and the coefficient of friction is mu_(k)

A horizontal force F is applied to applied to a homogeneous rectangula

1.	A horizontal force F is applied to applied to a homogeneous rectangular block of massm, width b and height H. The block moves with constant velocity and the coefficient of friction is mu_(k)
Answer» `(B)/(2mu_(s))` `(b)/(mu_(s))` `(b)/(SQRT(2)mu_(s))` `2bmu_(s)` ANSWER :A