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Science

Physics

Classical Mechanics Concepts

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Newton's First Law

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Newton's Second Law

F = ma

Newton's Third Law

For every action, there is an equal and opposite reaction.

Conservation of Momentum

The total momentum of a closed system is conserved unless acted upon by external forces.

Kinetic Energy

KE = \frac{1}{2}mv^2

Potential Energy

PE = mgh

Work

W = Fd \cos(\theta)

Power

P = \frac{W}{t}

Mechanical Advantage

The ratio of the output force to the input force in a system.

Torque

\tau = Fr\sin(\theta)

Angular Momentum

L = I\omega

Hooke's Law

F = -kx

Impulse

J = F\Delta t = \Delta p

Centripetal Force

F_c = \frac{mv^2}{r}

Gravitational Force

F_g = G\frac{m_1m_2}{r^2}

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