Thrust
It's a reaction force: This means that it arises from Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. In the case of thrust, the action is the acceleration of a mass, and the reaction is the force that propels the object forward.
It can be measured in newtons: The SI unit of force is the newton (N), which is equal to the force required to accelerate one kilogram of mass at a rate of one meter per second squared.
There are different ways to generate thrust: Some common methods include:
Propeller: A propeller works by pushing air backward, which creates a force that propels the object forward. This is how airplanes and boats generate thrust.
Jet engine: Jet engines work by burning fuel and expelling hot gases at high speeds. The reaction to this expulsion creates a thrust that propels the object forward. This is how airplanes and rockets generate thrust.
Rocket: Rockets don't need air to operate, as they carry their oxidizer. They work by expelling hot gases out of the back, which creates thrust that propels the rocket forward.
Thrust is essential for many applications: It's used in everything from transportation to space exploration. Without trust, we wouldn't be able to fly, sail, or even swim!
lift
Drag