Question

A disc of mass 10 gm is kept floating
horizontally by throwing 10 marbles/s
against it from below. If the mass of each
marble is 5 gm, find the velocity with which
each of the marbles are striking the disc.
Assuming that the marbles strike the disc
normally rebounded downward with the
same speed (g = 9.8m/s)​

Answer 1

500

Explanation:

10multiply 10. multiply. 5