A small polished glass ball P of mass mpall = 20 g moves on the inside...

  

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A small polished glass ball P of mass mpall = 20 g moves on the inside smooth surface of a spherical bowl of internal radius r = 25 cm. The object rotates with constant angular speed w, in a horizontal circle which is at a depth of r/2 below the centre of the bowl. It is required to determine: %3D a) The magnitude of Normal reaction acting on object P: b) The linear speed and the time it takes the small ball to do a full rotation of its circular path. A small polished glass ball P of mass mpall = 20 g moves on the inside smooth surface of a spherical bowl of internal radius r = 25 cm. The object rotates with constant angular speed w, in a horizontal circle which is at a depth of r/2 below the centre of the bowl. It is required to determine: %3D a) The magnitude of Normal reaction acting on object P: b) The linear speed and the time it takes the small ball to do a full rotation of its circular path.

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