1800-150-456-789
FlagBACK
Flag General Physics> A ring is released on a curve y=x^2, fric...
question mark

A ring is released on a curve y=x^2, friction is sufficient such that ring rolls witout slipping. The value of force oof friction as a function of x is given by f=(Mgx/root(Nx^2+1)) , the value of N is: Mass of ring : M Radius: RAns 4

Abhigyan , 10 Years ago
Grade 11
anser 1 Answers
Mallikarjun Maram

Last Activity: 10 Years ago

Please see the figure below:
p { margin-bottom: 0.25cm; line-height: 120%; }

At any given instant the rolling of the ring is equal to rolling on a rough inclined plane, which is tangential to given surface at that instant, at an angle given by

Formula for friction force of a rolling body without slipping on a rough inclined plane is given by , where K is the radius of gyration of the rolling body about an axis passing through its center of mass.

Given tan θ = 2x, then and K = 1 for a ring. Substituting these values we get .

Hence N = 4.

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

Other Related Questions on general physics

question mark
moment of inertia of a equilateral triangle about an axis passing through centre and perppendicular to the plane
general physics
1 Answer Available

Last Activity: 2 Years ago

question mark
. Because of the rotation of the earth, a plumb bob may not hang exactly along the direction ofthe earth’s gravitational pull (its weight) but deviates slightly from this direction. Calculate thedeviation (a) at 40 latitude, (b) at the poles, and (c) at the equator
general physics
1 Answer Available

Last Activity: 2 Years ago

question mark
The length of a massless rod is measured using vernier callipers having 10 vernier scale divisions and least count of 0.1 mm. Two masses 1.00 ± 0.01 kg and 4.00 ± 0.02 kg are attached to its ends. If reading of vernier scale is 5 divisions coinciding with 1.3 cm, what is the % error in locating centre of mass from lighter mass
general physics
2 Answers Available

Last Activity: 2 Years ago

question mark
A block is kept on x-y plane at a point (2m,3m). It is pushed with a force of magnitude 10 Ntowards point (5m,7m). The force can be represented as?
general physics
0 Answer Available

Last Activity: 2 Years ago

question mark
The phase of particle at t is 70°and another particle is at t is 790° what is wavelength if the distance between two particles is1 m
general physics
0 Answer Available

Last Activity: 2 Years ago