Q)
(chatquestion)...2.12 A loaded spring gun fires a ʼshot' with some veloc-
ity at some angle of elevation. The gun is initially at
rest on a horizontal frictionless surface. After fir-
ing, the centre of mass of the gun-shot system
(1)
remains at rest
(2)
moves in horizontal direction
(3)
moves in vertical direction
(4)
moves in some arbitrary direction
2,13 If the resultant of external forces acting on a...(How it will be in vertical direction ??)
...
