A body of mass 5.0 kg and density `5000 (kg)/(m^3)` is completely dipped in a liquid of density `1000 (kg)/(m^3)`. Find the force of buoyancy on it.

The graph shows the retardation of a car of mass 1000 kg. Find the retarding force.

A body of 10 kg is floating on a liquid. Find the buoyant force acting on it.

Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle 30^@ with each other. When suspended in a liquid of density 800 kg m^-3 , the angle remains the same. Wahat is the dielectric constant of the liquid? The density of the material of the sphere is 1600 kg m^-3

Relative density of gold is 19.3. The density of water is 1000 kg m^-3 . What is the density of gold in SI units.

A force of 100 N is able rp produce an acceleration 8 m s^-2 in body of mass 10 kg. finf the value of force of friction.

A horizontal force 600 N pulls two masses 10 kg and 20 kg lying on a frictionless table conneced by a light string find tension in the string if the force is applied on 20 kg mass.

A constant force acting on a body of mass 3.0 kg changes its speed from 2.0 m s^-1 to 3.5 m s^-1 in 25 s. The direction of the motion of the body remains unchanged. What is the magnitude and direction of the force ?

A body of mass 5 kg strikes another bodfy of mass 2.5 kg initially at rest.The bodies after collision coalesce and begin to move as a whole with a KE of 5 j.the KE of the first body before collision is: