Question

6. A shell of mass 100 g is fired from a gun of mass
2 kg. Chemical energy of explosive which converts
into kinetic energy is 8.4 kJ. The magnitude of
momentum of the gun just after the firing, is
(1) 25 NS
(2) 20 NS
(3) 40 NS
(4) 30 NS​

Answer 1

Answer:

i think 40 ns. not sure think