Home
Class 11
PHYSICS
A ball is thrown down a lawn in such a w...

A ball is thrown down a lawn in such a way that it initially slides with a speed `v_(0)` without rolling. It gradually picks up rotational motion. Find the speed of the ball at which there will be rolling without slipping :

A

`(2)/(7)v_(0)`

B

`(2)/(5)v_(0)`

C

`(5)/(7)v_(0)`

D

`(3)/(5)v_(0)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

A ball is thrown down a lawn in such a way that it initially slides with a speed v_(0) without rolling. It gradually picks up rotational motion. Prove that it will be without sliding, that is, its motion will be pure rolling when its speed falls to 5/7v_(0) .

A heavy disc is thrown on a horizontal surface in such a way that it slides with a speed V_(0) intially without rollind . It will start rolling without slipping when its speed is reduced

A ball (solid sphere) is thrown down the valley in such a way that it slides with a speed v_(0) initially without rolling. Prove that it will roll without any sliding when its speed falls to (5/7)v_(0) . The transition from pure sliding to pure rolling is gradual, so that both sliding and rolling take place during this interval.

A ball is thrown downward In a viscous fluid with speed V. Terminal speed of ball is V_(0)

A sphereicla ball of mass M and radius R is projected along a rough horizontal surface so that initially (t=0) it slides with a linear speed v_(0) but does not rotate. As it slides, it begins to spin and eventually rolls without slipping. How long does it take to begin rolling without slipping?

A ball rolls down an inclined trck 2 m long in 4s. Find speed of the ball at the bottom of the track.

A thin hollow cylinder rolls with the same speed without slipping. Find the ratio of kinetic energies in the two cases.

A heavy solid sphere is thrown on a horizontal rough surface with initial velocity u without rolling. What will be its speed, when it starts pure rolling motion ?