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 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 bucket full of water is tied at the end of rope of length 1.6 m. It is rotated in vertical circle with constant speed around the other end. What should be the minimum speed of bucket so that water does not spill out at the highest position of the circle ?

A bucket tied at the end of a 1.6m long string is whirled in a verticle circle with constant speed. What should be the minimum speed so that the water from the bucket does not spill, when the bucket is at the highest position (Takeg=10m//s^(2))

A fly over bridge is in the form of a circular are of radius 30 m. Find the limiting speed at which a car can cross the bridge without losing contact with the road at the highest point. Assume the centre of gravity of the car to be 0.5 m above the road.

The pilot of an aircraft, who is not tied to his seat, can loop a vertical circle in air without falling out at the top of the loop. What is the minimum speed required so that he can successfully negotiate a loop of radius 4 km ?

A body of mass 2 kg is attached to a cord and whirled in a vertical circle of radius 2 m. The minimum speed at the bottom of the circle so that the cord will not slacken when the body rounds the top of the circle will be

A motor cyclist (as a particle ) is undergoing vertical circles inside a sphere of death . The speed of the motorcycle varies between 6m/s and 10 m/s. Calculate diameter of the sphere of death. How much minimum values are possible for these two speeds ?

A body of mass m is revolving along a vertical circle of radius r such that the sum of its kinetic energy and potential energy is constant. If the speed of the body at the highest point is sqrt (2rg) then the speed of the body at the lowest point is

A motorcyclist (as a particle) is undergoing vertical circles inside a sphere of death. The speed of the motorcycle varies between 6 ms^-1 and 10 ms^-1 Calculate diameter of the sphere of death . How much minimum value are possible for these two speed?