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In the figure, two blocks are shown with an inclined plane. The two blocks are connected...

In the figure, two blocks are shown with an inclined plane. The two blocks are connected by a massless string strung over a massless pulley. The mass of Block #1 is 3.57 kg and that of Block #2 is 11.0 kg. The angle θ of the incline is 43.0 degrees. The plane is NOT smooth and has a coefficient of static friction of 0.570 and a coefficient of kinetic friction of 0.240.


Taking the positive direction to be up the incline, determine the following:

(a) the acceleration of Block #1 if it is initially at rest.
m/s2
(b) the acceleration of Block #1 if it is already moving up the plane.
m/s2
(c) the acceleration of Block #1 if it is already moving down the plane.
m/s2

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