How does the flotation of boats relate to Newton's laws?

If i have a small toy boat with a sail, and i attach a fan onto it, FACING THE SAIL, which runs by solar. Once the fan turns on will the boat move or will it remain at rest. Apparently it wont because according to Newtons third law the sail will give an equal force back on to the air pushed by the fan. read more

To really understand a boat launch, it's helpful to understand Newton's laws of motion. The first law of motion states that an object tends to remain in its current state of motion until it encounters an external force. When an object is in motion, it has momentum. Momentum specifically refers to mass in motion. read more

The water pressure counteracts the force of gravity -- in accordance with Newton's Laws of Motion -- and allows the block to float. The water pressure provides the buoyant force. To understand this concept, it may help students to think about three blocks, each in the shape of a cube that is one foot on a side. read more