During a stunt, a cyclist (considered to be a particle) is undertaking horizontal circles inside a cylindrical well of radius 6.05 m. If the necessary friction coefficient is 0.5, how much minimum speed should the stunt artist maintain? Mass of the artist is 50 kg. If she/he increases the speed by 20%, how much will the force of friction be?

During a stunt, a cyclist (considered to be a particle) is undertaking horizontal circles inside a cylindrical well of radius 6.05 m. If the necessary friction coefficient is 0.5, how much minimum speed should the stunt artist maintain ? Mass of artist is 50 kg . If she/ he increses the speed by 20%, how much will the force of friction be ?

A motor cyclist is to undertake horizontal circles inside the cylindrical wall of a well of inner radius 4m . Coefficient of static friction between the tyres and the wall is 0.4. Calculate the minimum speed and frequency necessary to perform this stunt.

A motor cyclist (to be treated as a point mass) is to undertake horizontal circles inside the cylindrical wall of a well of inner radius 4 m. Coefficient of static friction between the tyres and the wall is 0.4. Calculate the minimum speed and frequency necessary to perform this stunt. (Use g = 10 m//s^(2) )

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 ?

In a 'well of death' a rider drivesround the inner wall of a hollow cylindrical chamber of diameter 20 m. If the coefficient of force of friction between tyres and inner wall of the hollow cylinder is 0.5, then the minimum speed of the rider without sliding down will be

A block of mass m=2kg is resting on a rough inclined plane of inclination plane of inclination 30^(@) as shown in figure. The coefficient of friction between the block and the plane is mu=0.5 . What minimum force F should be applied perpendicular to the plane on the block, so that blocks does not slip on the plane? (g=10m//s^(2))

A tiny stone of mass 20 g is tied to a practically massless, inextensible, flexible string and whirled along vertical circles. Speed of the stone is 8 m/s when the centripetal force is exactly equal to the force due to the tension. Calculate minimum and maximum kinetic energies of the stone during the entire circle. Let theta = 0 be the angular position of the string, when the stone is at the lowermost position. Determine the angular position of the string when the force due to tension is numerically equal to weight of the stone. Use g = 10 m//s^(2) and length of the string = 1.8 m

A cyclist with combined mass 80 kg going around a curved road with a uniform speed 20 m//s . He has to bend inward by an angle theta = tan^(-1) (0.50) with the verticle , then the force of friction between road surface and tyres will be (g=10m//s^(2)

A fireman of mass 60 kg slides down a pole. As shown in figure. He is pressing the pole with a force of 600 N. The coefficient of friction between the hands and the pole is 0.5. With wht acceleration will the fireman slide down (g=10 m//s^(2))