Question

In a closed system of a cannon and cannonball, which changes would both result in an increase in the kinetic energy of the cannonball when fired from the cannon?

Answer 1

i would say B decrease mass of cannon or decrease mass of cannon ball

Step-by-step explanation:

because when you fire the cannon the cannon ball and powder exit the cannon then that leaves the cannon ball and i would say that the explosion would force it out the cannon but would not increase its mass.

Answer 2

the length of the cannon

the power of the gunpowder