A motorcyclist rides in vertical circles in a hollow sphere of radius 5 m. Find the required minimum speed and minimum angular speed, so that he does not lose contact with the sphere at the highest point .

A motor cyclist rides in a vertical circle in a hollow sphere of 3m. Find the minimum speed required so that he does not lose contact while the sphere at the highest point.

A motor cycle rides in a hollow sphere in a verticle circle of radius 30 m .What will be the minimum speed required so that he does not lose contact with the surface of sphere at the highest point?

Motor cylist rides in the verticle circle in 'well of death' sphere of radius 9m. What will be speed required so that he does not lose contact at the highest point?

Consider a case of fixed smooth sphere of radius R . A block of mass m is placed at the most poit of the sphere . A sharp impulse is applied on the block to impart it a speed v . What si the maximum possible value of v so that block does not lose contact with the sphere at the top point ?

A bucket full of water is rotated in vertical circle of radius 20 m. The minimum speed that the bucket should have so that water will not fall when it is at the highest point is:

A stone is tied to a weightless string and revolved in a vertical circle of radius 5 m . What should be the minimum speed of the stone at the highest point of the circle so that the string does not slack ? What should be the speed of the stone at the lowest point of vertical circle ? Take g = 9.8 ms^(2) .

A bucket full of water is rotated in a vertical circle of radius r. if the water does not spill out , the minimum speed of the bucket at top most point will be

What must be the minimum speed of the body at the lowest point ,so that it may complete the vertical circle?