Answer to Question #48970 in Mechanics | Relativity for abdul
The figure above shows part of a system consisting of a block at the top of an inclined plane that rests on a
table, which is located on Earth. The block and plane are at rest when the block is released. In trial 1 there is
no friction between the block and the plane or between the plane and the table. In trial 2 the plane is fixed to
the table so it cannot move, but there is still no friction between the block and the plane.
(a) Indicate whether the speed of the block relative to the table when the block reaches the bottom of the
plane is greater in trial 1 or trial 2. Justify your answer in a clear, coherent, paragraph-length
(b) Assuming the body has mass M and the plane has mass 3M and angle 30o, find the ratio of the speeds of
the block at the base of the plane, just before entering the curved area of the plane, in the 2 cases ( trial
1 / trial 2).
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