Question

Q3. Three particles of masses 10 20 40 gram resp are kept at vertices of an equilateral triangle of side 10cm with A at origin and B on x axis. The centre of mass of system is​

Answer 1

Explanation:

The center of mass of a system of three particles of masses 1 g,2 g and 3 g is taken as the origin of a coordinate system. The position vector of a fourth particle of mass 4 g such that the center of mass of the four particle system lies t the point (1,2,3,) is α(i^+2j^+3k^), where α is a constant.