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

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.