In a circus , the diameter of globe of death is 20 m . From what minimum height must a motor cyclist start in order to go around the globe successfully ? .

In a cylindrical well of death , a motor cyclist rides around the inner wall in horizontal circles. If the diameter of well of death is 18 m , then the minimum speed of cyclist , so as to prevent him from sliding down will be (mu=0.8 and g=10 m//s^(2))

A person wants to drive on the vertical surface of a large cylindrical wooden 'well' commonly known as 'death well' in a circus. The radius of the well is R and the coefficient of friction between the tyres of the motorcycle and the wall of the well is s. The minimum speed the motor cyclist must have in order to prevent slipping should be -

From what minimum height a block of ice has to be dropped in order that 0.5% of ice melts on hitting the ground ?

A body is allowed to slide down a frictionless track from rest position at its top under gravity. The track ends in a circular loop of diameter D . Then, the minimum height of the inclined track (in terms of D ) so that it may complete successfully the loop is

A person wants to drive on the vertical suirface of a large cylindrical wooden well commonly known as death well in a circus. The radius of the well 2 meter, and the coefficient of friction between the tyers of the motorcycle and the wall of the well is 0.2 the minimum speed the motorcyclist must have in order to prevent slipping should be

A persong whants to drive on the verical surface of a large cylindrical wooden wll commonly know as death well in a circus. The radius of well is R and the coefficient of friction between the tyres of the motorcycle and the wall of the well is mu_(s) .The minimum speed, the motorcyclist must have in order to prevent slipping should be

A board of mass m = 1 kg lies on a table and a weight of M = 2 kg on the board. What minimum force F must be applied on the board in order to pull it out from under the road ? The coefficient of friction between board and table is mu_(2) = 0.5 : (Take g = 10 m//s^(2) )

A motor cyclist in a circus , drives in a vertical loop inside a death well . What is the minimum speed required to complete the vertical circle , without falling down to complete the vertical circle , without falling down at the highest point , if the radius of the death well is 5 m?

Anand is watching a circus artist climbing a 20m long rope which is tightly stretched and tied from the top of vertical pole to the ground. Find the height of the pole if the angle made by the rope with the ground level is 30^(@) .

A ball rolls down an inclined plane from a height and then goes round a vertical circle of radius 1m. What should be the height of the inclined plane so that the ball is able to go round the circle without leaving the track?