An angular ring with inner and outer radii R1 and R2 is rolling without slipping with a uniform angular speed. The ratio of the forces experienced by the two particles situated on the inner and outer pairs of the ring, F1/F2 is
Correct answer: B. R1/R2
- A. 1
- B. R1/R2
- C. R2/R1
- D. (R2/R1)2
Explanation
F=mw2rAs both points are on the same ring, they will have the same m and w.So, f is proportional to r.F1/F2=R1/R2.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Angular and Linear Quantities
Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
Practise Rotational and Circular Motion
521 free Rotational and Circular Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Angular and Linear Quantities questions
A particle moves on a circular path with decreasing speed. Choose the correct statement.
A body of mass 10kg, is moving with a velocity of 5m/s in a circle of radius 5m, what is the centripetal acceleration of the body?
When a body is whirled in a horizontal circle by means of a string, the centripetal force is supplied by:
If the body of mass m is rotating in a circle of radius r with frquency of rotation "f" then centripetal force acting on it is
rω2 has unit of
The figure shows a cylinder of radius 0.7m rotating about its axis at 10rad/s. The speed of the point P is: