Two blocks of msses 10 kg and 30 kg are placed along a vertical line. The first block is raised through a height of 7 cm. By what distance should the second mass be moved to raise the centre of mass by 1 cm?

Two blocks of masses 10kg and 30kg are placed on X-axis. The first mass is moved on the axis by a distance of 2cm right. By what distance should the second mass be moved to keep the position of centre of mass unchanged.

Two bocks of masses 10 g and 20 kg are plced on the X-axis. The first mass is moved on the axis by a distance of 2 cm. By what distance should the second mass be moved to keep the position of the centre of mass unchanged?

Two particles of mass 2 kg and 4 kg lie on the same line. If 4 kg is displaced rightwards by 5m then by what distance 2 kg should be move for which centre of mass will remain at the same position

Initially spring is in its natural length . The block of mass 3 kg in contact with rigid wall . The block of mass 1 kg is pushed through a distance 4 cm towards the wall and then released. The velocity of the center of mass when the block of mass 3 kg breaks off the wall is (k = 100 N//m)

Two partcles of masses 1 kg and 2 kg are placed at a distance of 3 m. Moment of inertia of the particles about an axis passing through their centre of mass and perpedicular to the line joining them is (in kg-m^(2))

Three particles of masses 0.5 kg, 1.0 kg and 1.5 kg are placed at the three corners of a right angled triangle of sides 3.0 cm, 4.0 cm and 5.0 cm as shown in figure. Locate the centre of mass of the system.

An object of mass 1kg is raised through a height h. Its potentil energy increases by 1J. Find the height h.