Thrust

A Lockheed Martin F-35 Lightning II aircraft performing a vertical climb using its Pratt & Whitney F135 jet engine, which produces 43,000 lbf (190,000 N) of thrust.

Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction to be applied to that system.[1] The force applied on a surface in a direction perpendicular or normal to the surface is also called thrust. Force, and thus thrust, is measured using the International System of Units (SI) in newtons (symbol: N), and represents the amount needed to accelerate 1 kilogram of mass at the rate of 1 meter per second per second.[2] In mechanical engineering, force orthogonal to the main load (such as in parallel helical gears) is referred to as static thrust.

  1. ^ "What is Thrust?". www.grc.nasa.gov. Archived from the original on 14 February 2020. Retrieved 2 April 2020.
  2. ^ "Force and Motion: Definition, Laws & Formula | StudySmarter". StudySmarter UK. Retrieved 12 October 2022.