Galileo Galilee dropped two balls off of the top of the Leaning Tower of Pisa. One was wooden and the other was a cannon ball. He dropped them at the same time to see which one would hit the ground first.
Galileo did.
198 feet 10.66 inches
Due to the force of gravity. The gravitational attraction between the Earth and the ball is what causes the ball to drop.
They will fall at the same rate, for more information Google "why was the leaning tower of Pisa built"
mass x velocity = momentum
A cannon ball.
Momentum. Momentum is the mass of an object multiplied by its velocity. This is expressed as: p=mv where p is the momentum, m is the mass, and v is the velocity. Also, kinetic energy, as that is 1/2 m*v^2.
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
A rock that is dropped, and a apple falling from a tree.Hold a ball in your hand, stretch out your arm, and drop the ball. As it is moving towards the ground, it is in free fall.
I dropped a ball