A2 Physics Circular Motion | Past Papers Lecture 01 | 9702/41/O/N/14 9702/42/O/N/14 Q2

A large bowl is made from part of a hollow sphere.
A small spherical ball is placed inside the bowl and is given a horizontal speed. The ball follows a horizontal circular path of constant radius, as shown in Fig. 2.1.

The forces acting on the ball are its weight W and the normal reaction force R of the bowl on the ball, as shown in Fig. 2.2.

The normal reaction force R is at an angle θ to the horizontal.
(a) (i) By resolving the reaction force R into two perpendicular components, show that the
resultant force F acting on the ball is given by the expression W = F tanθ.

(ii) State the significance of the force F for the motion of the ball in the bowl.

The ball moves in a circular path of radius 14 cm. For this radius, the angle θ is 28°. Calculate the speed of the ball

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[artgonesavage]

yehi parh raha tha same question mil gaya lolll😂