Posted by **Lanell** on Wednesday, February 10, 2010 at 2:30pm.

If a ship is sailing with a constant speed of 30 m/s to the east and a cannonball is launched straight up into the air from the deck of the ship, why does the cannonball land back in the cannon and not in the ocean behind?

- Science -
**DrBob222**, Wednesday, February 10, 2010 at 4:32pm
The forward motion of the cannonball is the same as the forward motion of the ship; while the cannonball is in the air, the ship keeps moving to keep up with it, and the ball returns to its original position.

Look at it another way. You are on a ship. The ship is moving at a fast clip of 5 mph. You draw a line on the deck. Now you jump toward the front of the ship by 3 feet. Where do you land?(ans: 3 feet in front of the line.) Now you jump 3 feet to the rear of the ship. Where do you land? *ans: 3 feet back of the line.) Remember you are traveling at 5 mph while the ship is traveling 5 mph.

## Answer This Question

## Related Questions

- physics - a pirate ship fires a 25kg cannonball with a velocity of +100m/s at a ...
- math - Mighty Mouse (who flies at a constant speed of 600mph) was standing by a ...
- Math - Mighty Mouse (who flies at a constant speed of 1400 ft/sec) was standing ...
- physics - A cannonball is shot from a cannon on a cliff at a height of 18.9 m at...
- physics - A canon mounted on a pirate ship fires a cannonball at 125 m/s ...
- physics - A cannon mounted on a pirate ship fires a cannonball at 125 m/s ...
- physics - A cannon mounted on a pirate ship fires a cannonball at 125 m/s ...
- physics - A cannon mounted on a pirate ship fires a cannonball at 125 m/s ...
- other - A cannon mounted on a pirate ship fires a cannonball at 125 m/s ...
- MATH - The height h (in meters) of a cannonball t seconds after it is fired into...

More Related Questions