1.

n small balls each of mass m impinge elastically each second on a surface with velocity u. The force experienced by the surface will be               [MP PMT/PET 1998; RPET 2001; BHU 2001; MP PMT 2003]

A.             mnu    
B.             2 mnu
C.             4 mnu
D.             \[\frac{1}{2}\,mnu\]
Answer» C.             4 mnu


Discussion

No Comment Found

Related MCQs