I can measure the magnitude of the force from the fan by turning it on and letting it push up against a force probe. With this, it seems to push with a force of about 0.2 Newtons (your fan may vary).

If you want to model the forces on a particle moving near the speed of light (3 x 10 8 m/s), then the plain version of Newton's 2 nd Law doesn't work. However, the momentum principle still works ...

There is no resultant (or net) force as the forces add up to zero. ... Resultant force F = mass m x acceleration a. F = ma. F = resultant force in N. m = mass in kg. a = acceleration on m/s 2 ...

Learn the key differences between centripetal and centrifugal forces, their real-world applications in physics, and how they shape our understanding of circular motion.

Second Law (Force and Acceleration): How fast an object speeds up depends on how hard you push and how heavy the object is. The heavier it is, the harder you have to push to make it move faster.

There is no resultant (or net) force as the forces add up to zero. ... This practical uses light gates and a data logger to investigate resultant force and acceleration. Key fact.