`10gm`,`30gm` and `60gm` are at `20cm`,`40cm` and `80cm` on light metre scale.The position of the centre of mass of the system is (in )

The coordinates of the positions of particles of mass 7gm,4gm and 10gm are (1,5,-3)(2,5,7)" and "(3,3,-1)cm respectively.The position of the centre of mass of the system would be:

Two masses of 500 gram and 600 grams are attached to the 10 cm and 80 cm marks respectively of a light metre scale. The moment of inertia of this system about an axis passing through the centre of the scale will be

Two particles of masses 5 gm and 10 gm are 12 cm apart. What will be the location of the centre of mass of the system of these two particles from the lighter particle is ?

Three particles of masses 1gm, 2gm & 3gm are at 1cm, 2cm & 3cm from the axis of rotation respectively then the moment of inertia of the system & radius of gyration of the system respectively are …. gm cm^2 and ….. cm

A body of mass 20 gm is moving with a certain velocity. It collides with another body of mass 80 gm at rest. The collision is perfectly inelastic. The ratio of the kinetic energies before and after collision of the system is

The co-ordinates of centre of mass of particles of mass 30,10 and 20gm are (2,2,2) cm. The position co-ordinates of mass 40gm which when added to the system,the position of combined centre of mass be at (0,0,0) are.

The inner diameter of a cylindrical wooden pipe is 24cm and its outer diameter is 28cm. The length of the pipe is 35cm. Find the mass of the pipe,if 1cm^(3) of wood has a mass of 0.6gm.

A cuboidal oil tin is 30cm by 40cm by 50cm . Find the cost of the tin required for making 20 such tines if the cost of tin sheet is Rs.20 per square metre.

A wire of 60 cm length and mass 16 gm is suspended by a pair of flexible leads in a magnetic field of induction 0.40 T. What are the magnitude and direction of the current required to remove the tension in the supporting leads?