Home
Class 12
PHYSICS
A disc is rolling without slipping with ...

A disc is rolling without slipping with angular velocity `omega`. P and Q are two points equidistant from the centre C. the order of magnitude fo velocity is

A

`V_(0) gt V_(C) gt V_(F)`

B

`V_(F) gt V_(C)V_(Q)`

C

`V_(P)= V_(C), V_(Q) = V_(C)//2`

D

`V_(P) lt V_(C) gt V_(C)`

Text Solution

Verified by Experts

The correct Answer is:
A
The rolling disc can be considered as pure rotation about point of contact O. In this case point O will act as instantaneous centre of rotation of disc.
Hence velocity of point `P,V_(p) = omegar_(1)`

Velocity of point, Q, `v_(Q) = omega r_(2)`
velocity of point C, `v_(C) = omegaR`
`r_(2) gt R gt r_(1) rArr v_(Q) gt v_(C) gt v_(P)` .
Promotional Banner

Similar Questions

Explore conceptually related problems

A disc is rotating with angular velocity omega . If a child sits on it, what is conserved?

As shown in the figure, a disc of mass m is rolling without slipping with angular velocity omega . When it crosses point B disc will be in

A disc is rolling (without slipping) on a horizontal surface. C is its center and Q and P are two points equidistant from C . Let V_(P), V_(Q) and V_(C) be the magnitude of velocities of points P, Q and C respectively, then .

Three identical cylinders of radius R are in contact.Each cylinder is rotating with angular velocity omega .A thin belt is moving without sliding on the cylinders. Calculate the magnitude of velocity of point P with respect to Q.P and Q are two points of belt which are in contact with the cylinder.

A disc is rolling without slipping on a horizontal surface with C, as its centre and Q and P the two points equidistant from C. Let v_(P),v_(Q) and v_(C) be the magnitudes of velocities of point P,Q and C respectively, then

A disc is rolling without slipping with linear velocity v as shown in figure. With the concept of instantaneous axis of rotation, find velocities of point A, B, C and D.

A disc is rolling (without slipping) on a horizontal surface. C is its centre and Q and P are two point equidistanec from C. let upsilon_(p),upsilon_(Q) and upsilon_(C) be the magnitude of velocities of points P, Q, and C repsectively, (a). upsilon_(Q)gtupsilon_(C)gtupsilon_(P) (b). upsilon_(Q)ltupsilon_(C)ltupsilon_(P) (c). upsilon_(Q)=upsilon_(P),upsilon_(C)=(1)/(2)upsilon_(P) (d). upsilon_(Q)ltupsilon_(C)gtupsilon_(P)

When a disc is rotating with angular velocity omega , a particle situated at a distance of 4 cm just begins to slip . If the angular velocity is doubled , at what distance will the particle start to slip ?

During rolling without slipping, what is the velocity of the point in contact with the surface.

A circular disc of radius R is rotating about its axis O with a uniform angular velocity omega"rad s"^(-1) as shown in the figure. The magnitude of the relative velocity of point A relative to point B on the disc is