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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 10 - COM, Momentum and Collision > n balls each of mass m impinge elastically each second on a surface with velocity u. The force experienced by the surface will be

n balls each of mass m impinge elastically each second on a surface with velocity u. The force experienced by the surface will be

n balls each of mass m impinge elastically each second on a surface with velocity u. The force experienced by the surface will be