Question

if two sphere of uniform density and having masses 10kg and 4 kg are placed in 7m apart then position of centrw of masses of system is

Answer 1

Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface.An impulse gives a velocity of 14m/s to the heavier block in the direction of the lighter block.the velocity of the center of mass is

a.5m/s