A body a of mass m slides on plane inclined at angle `theta_(0)` to the horizontal and `mu_(1)` is the coefficient of friction between `A` and the plane `A` is connected by a light string passing over a frictionless pulley to another body `B` also of mass m slidding on a frictionless plane inclined at angle `theta_(2)` to the horizontal Which of the following statements are ture ? .

Options

A. A will never move up the plane
B. A will just start moving up the plane when `mu = sin theta_(2) - sin theta _(1)) // cos theta_(1)`
C. For A to move up the plane `theta_(2)` must always be greater than `theta_(1)`
D. B will always slide down with constant speed

Answer

B, C