Circular motion - marble in bowl

AI Thread Summary
The discussion focuses on calculating the forces acting on a glass marble moving in a horizontal circle within a smooth hemispherical bowl. The marble's mass and the bowl's radius are key parameters, with the center of the circle located 1/2r below the bowl's center. Two primary forces are identified: gravitational force and the normal reaction force from the bowl. The relationship between these forces helps determine the marble's speed and the magnitude of the normal reaction. Understanding the balance of forces is essential for solving the problem accurately.
Thanuka
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Can anyone please answer this question

1.A glass marble of mass m is moving int a horizontal circle round the inside surface of a smooth hemispherical bowl of radius r. The centre of the circle is at a distance 1/2r below the centre of the bowl. (i) Find the magnitude of the reaction between the marbel and the bowl (ii) and the speed of the marble.
 
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Note down the two forces acting on the marble.
Marble is moving in a horizontal circle without slipping along the bowl.
So identify equal and opposite camponents of the two forces acting on the marble.
Other camponents of the two forces adds up to give the normal reaction.
 
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