Respuesta :

Newton's 2nd law of motion.

kinds,

External Force
Surface Tension
Pseudo Force
Frictional Force
Viscous Force
Buoyancy



Action-at-a-Distance Forces  

Gravitational Force  

Electrical Force  

Magnetic Force


Contact Forces  

Frictional Force  

Tension Force  

Normal Force  

Air Resistance Force  

Applied Force  

Spring Force