Doesn't directly answer what is a force, but perhaps you'll find this perspective interesting: https://en.wikipedia.org/wiki/Static_forces_and_virtual-particle_

Doesn't directly answer what is a force, but perhaps you'll find this perspective interesting: https://en.wikipedia.org/wiki/Static_forces_and_virtual-particle_exchange https://en.wikipedia.org/wiki/Static_forces_and_virtual-part...