Find out the normal reaction at point A and B if the mass of sphere is 10kg.

A hollow metallic sphere has inner and outer radii, respectively as 5 cm and 10 cm if the mass of the sphere is 2.5 kg, find (a) density of the material, (b) relative density of the material of the sphere.

A hollow metallic sphere has inner and outer radii, respectively as 5 cm and 10 cm if the mass of the sphere is 2.5 kg, find (a) density of the material, (b) relative density of the material of the sphere.

A hollow metallic sphere has inner and outer radii, respectively as 5 cm and 10 cm if the mass of the sphere is 2.5 kg, find (a) density of the material, (b) relative density of the material of the sphere.

A solid sphere rolls on a smooth horizontal surface at 10 m//s and then rolls up a smooth inclined plane of inclination 30^@ with horizontal. The mass of the sphere is 2 kg . Find the height attained by the sphere before it stops (in m ).

A solid sphere rolls on a smooth horizontal surface at 10 m//s and then rolls up a smooth inclined plane of inclination 30^@ with horizontal. The mass of the sphere is 2 kg . Find the height attained by the sphere before it stops (in m ).

A man of mass 40 kg is at rest between the walls as shown in the figure. If between the man and the walls is 0.8, find the normal reaction exerted by the walls on the man. (g = 10 ms^(-2) )

A man of mass 40 kg is at rest between the walls as shown in the figure. If between the man and the walls is 0.8, find the normal reaction exerted by the walls on the man. (g = 10 ms^(-2) )

Two blocks A and B of masses 2kg and 3kg respectively, are placed on a horizontal surface as shown (one on top of other). Find the ratio of magnitude of normal reaction between A and B to that between B and the surface, respectively

Two blocks A and B of masses 2kg and 3kg respectively, are placed on a horizontal surface as shown (one on top of other). Find the ratio of magnitude of normal reaction between A and B to that between B and the surface, respectively

A ladder of mass 10kg is held at reat against a smooth wall on a rough ground as shown in figure. The normal reaction between the wall and the ladder is