Medieval cannon were artillery. A canon is different, and there is a link below to a related question on what the canon was.
Cannon were usually welded together from iron bars, or, if they were small, cast of bronze. The big ones were fairly effective siege weapons, as they could shoot boulders to knock down castle walls. Among the small ones were hand cannons and swivel guns.
An interesting early cannon was the petard, which was actually more like a bomb, but was classed as a cannon. It was loaded with a few pounds of powder, bound to the end of a pole, the fuse lighted, and then it was placed against a door that the attacker wanted demolished. A person who was not careful (so the idea goes) could get his clothes stuck to the petard's binding and be "hoisted on his own petard," to be blown up by his own work.
a cannon ball
I dug a cannonball out of the ground ...im wondering what it is worth ?
A Mace Flail.
yes
The cannon (also called artillery or gun or field piece) has no acceleration. It's just a stationary tube; a gun barrel.The cannon ball (also called a shell or projectile) travels at a speed determined by it's propellent charge; interior of the gun tube (rifled or smoothbore); length of gun tube; and the caliber of the weapon (gun size).As a rule: Larger projectiles travel slower; rifled barrels shoot slower projectiles; shorter gun tube have shorter ranges; smaller powder charges (propellent) travel smaller distances.I'm sorry, but the cannon does accelerate in the opposite direction of the cannon ball. This is called recoil. Old cannons simply rolled backwards as a result of recoil and had to be manually pulled forward again and reaimed. Modern artillery pieces all use recoil absorbing mechanisms that permit the barrel to recoil without moving the carriage, then automatically reextend the barrel.To answer the original question, the cannon is heavier and the ball is lighter, therefor the ball accelerates faster than the cannon.
I have put a few links to pictures of medieval cannon in Wikimedia Commons below:
A cannon ball.
a cannon ball
the size of the cannon ball depends on the size of the cannon. civil war cannons had cannon balls about the size of a child's head, aprox 30cm across
cannon ball
in the late medieval period many medieval castles did have a primitive type of cannon.
The cannon would want to move backwards with the same speed as the ball wants to move forward.
The first cannon ball was made in the 3rd century BC in a place called Alexandra
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the explosion of gunpowder behind it propells it out of the cannon.
The Cannon Ball Express - 1924 was released on: USA: 30 November 1924
The Tardy Cannon Ball - 1914 was released on: USA: 10 October 1914