Question

a cannon of mass m1=100kg located on asmooth horizontal (platform) fires a shell of mass m2=300kg in horizontal direction with a velocity v2=400 m/s .find tge velocity of the canon after it is shoot​

Answer 1

m

1

v=m

2

v

2

+m

1

v

1

1000×0=200×300+1000×v

1

1000v

1

=−6000

v

1

=−6m/s

negative sign indicates opposite dire