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Two smooth spheres each of radius 5 cm and weight W rest one on the other inside a fixed smooth cylinder of radius 8 cm. The reactions between the spheres and the vertical side of the cylinder are:
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The FBD's of A and B are:for the horizontal equilibrium of the system (A and B):NAW = NBW -------(l)and by diagrams:cos θ = 610 ⇒ θ = 530applying NLM on sphere,B.⇒ NABsin θ = wand NBW = NAB cos θ = w(45)×35 = 3w4so NAW = NBW = 3w4Talk to our academic expert!
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ln the figure shown 'P' is a plate on which a wedge B is placed and on B a block A of mass m is placed. The plate is suddenly removed and system of B and A is allowed to fall under gravity. Neglecting any force due to air on A and B, the normal force on A due to B is
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