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Classical Mechanics

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Classical Mechanics

Newton's First Law

The principle that an object remains at rest or continues in uniform motion in a straight line unless acted upon by a net external force.

∑ F = 0 ⇒ v = constant N/A
Classical Mechanics

Newton's Second Law

The law stating that net force acting on a body equals the rate of change of its linear momentum, simplified to mass times acceleration for…

F_net = m a N
Classical Mechanics

Newton's Third Law

The law stating that whenever two objects interact, they exert forces on each other that are equal in magnitude and opposite in direction.

F_A_to_B = -F_B_to_A N
Classical Mechanics

Non-conservative Force

A force for which work done depends on the specific path taken, dissipating mechanical energy into heat, sound, or internal energy.

W_non-cons = ΔME = ΔKE + ΔPE N
Classical Mechanics

Normal Force

The perpendicular contact force exerted by a surface on an object pressing against it.

N = m g cos θ N