A small ball of mass m and radius 
rolls without slipping along the track shown in the figure. The radius of circular part of the track is R. If the ball starts from rest at a height of 8R above the bottom, the normal force on the ball at the point P is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
mg
Using Work-Energy Theorem
since the sphere is rolling without slipping v = r 
at point P, we can consider sphere as a point object doing circular motion in a circle of the radius (R - r) with velocity v,
Hence at point P
or 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
When a mass is rotated in a plane about a fixed point, its angular momentum is directed along the-
A chain of mass m forming a circle of radius R is slipped on a smooth round cone with half-angle 9.…
The moment of inertia of a rigid body in terms of its angular momentum L and kinetic energy K is
A solid sphere of radius R and mass M is rolled by a force F acting at the top of the sphere as sho…
A Uniform rod AB is hinged at its end A and the other end of the rod is connected to a block throug…
A circular platform is free to rotate in a horizontal plane about a vertical axis passing through i…