Forces
If the bike and rider are considered to be a single system, the forces that act on that system and its components can be roughly divided into two groups: internal and external. The external forces are due to gravity, inertia, contact with the ground, and contact with the atmosphere. The internal forces are caused by the rider and by interaction between components.
Read more about this topic: Bicycle And Motorcycle Dynamics
Famous quotes containing the word forces:
“The pace of science forces the pace of technique. Theoretical physics forces atomic energy on us; the successful production of the fission bomb forces upon us the manufacture of the hydrogen bomb. We do not choose our problems, we do not choose our products; we are pushed, we are forced—by what? By a system which has no purpose and goal transcending it, and which makes man its appendix.”
—Erich Fromm (1900–1980)
“Anarchism is the great liberator of man from the phantoms that have held him captive; it is the arbiter and pacifier of the two forces for individual and social harmony.”
—Emma Goldman (1869–1940)
“Is there something in trade that dessicates and flattens out, that turns men into dried leaves at the age of forty? Certainly there is. It is not due to trade but to intensity of self- seeking, combined with narrowness of occupation.... Business has destroyed the very knowledge in us of all other natural forces except business.”
—John Jay Chapman (1862–1933)