Arevolutionary war cannon, with a mass of 2260 kg, fires a 21 kg ball horizontally. the cannonball has a speed of 105 m/s after it has left the barrel. the cannon carriage is on a flat platform and is free to roll horizontally. what is the speed of the cannon immediately after it was fired?

0.97566 m/s

Explanation:

= Mass of cannon = 2260 kg

= Velocity of cannon

= Mass of ball = 21 kg

= Velocity of ball = 105 m/s

As the momentum of the system is conserved we have

The velocity of the cannon is 0.97566 m/s

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.