Home
Class 12
PHYSICS
A sphere S rolls without slipping, movin...

A sphere S rolls without slipping, moving with a constant speed on a plank P The friction between the upper surface of P and the sphere is sufficient to prevent slipping, while the lower surface of P is smooth and rests on the ground. Initially, P is fixed to the ground by a pin N. If N is suddenly removed,

A

S will begin to slip on P

B

P will begain to move backwards

C

the speed of S will decrease and its angular velocity will increase

D

there will be no change in the motion of S and P will still be at rest

Text Solution

Verified by Experts

The correct Answer is:
D
In rolling without slipping, at constant speed, there is no force of friction between the surface. Therefore, removing the pin causes no change to the system. Hence (D) is correct.
Promotional Banner

Similar Questions

Explore conceptually related problems

A sphere S rolls without slipping with a constant speed on a plank P . The friction between the upper surface of P and the sphere is sufficient to prevent slipping, while the lower surface of P is smooth and rest on the ground. Initially P is fixed on the ground by a pin N . If N is suddenly removed

A ring rolls without slipping on the ground. Its centre C moves with a constant speed u.P is any point on the ring. The speed of P with respect to the ground is v .

A sphere of mass M rolls without slipping on rough surface with centre of mass has constant speed v_0 . If its radius is R , then the angular momentum of the sphere about the point of contact is.

A cylinder executes pure rolling without slipping with a constant velocity on a plank, whose upper surface is rough enough, but lower surface is smooth. The plank is kept at rest on a smooth horizontal surface by the application of an external force F . The value of F is ?

A solid sphere is rolling without slipping on a level surface dat a constant speed of 2.0 ms^(-1) How far can it roll up a 30^(@) ramp before it stops ?

A sphere of mass M rolls without slipping on rough surface with centre of mass has constant speed v_0 . If mass of the sphere is m and its radius be R , then the angular momentum of the sphere about the point of contact is.

A ball is given a velocity v and angular velocity such that the ball rolls purely on a plank whose upper surface is rough enough to prevent slipping but lower surface contact with the ground is smooth. No other force is acting on system.

A disc of circumference s is at rest at a point A on a horizontal surface when a constant horizontal force begins to act on its centre. Between A and B there is sufficient friction toprevent slipping, and the surface is smooth to the right of B.AB = s . The disc moves from A to B in time T . To the right of B , .

Consider a wheel rolls without slipping and its centre moves with constant acceleration a. Find the acceleration of points O,P,Q and S when linear velocity of the centre of wheel is v .

A hoop rolls on a horizontal ground without slipping with linear speed v . Speed of a particle P on the circumference of the hoop at angle theta is :