Classical Mechanics
4 terms
Efficiency
Classical Mechanics
%
The ratio of useful work output to total energy input for a machine or system.
η = (W_output / E_input) × 100%
Elastic Collision
Classical Mechanics
kg·m/s, J
A collision between bodies in which both total linear momentum and total kinetic energy are conserved.
∑ p_i = ∑ p_f, ∑ KE_i = ∑ KE_f
Elasticity
Classical Mechanics
Pa (N/m²)
The mechanical property of a material to deform under applied stress and return to its original shape when stress is removed.
Stress / Strain = Elastic Modulus (E)
Escape Velocity
Classical Mechanics
m/s
The minimum speed required for a ballistic object to escape a massive body's gravitational field without further propulsion.
v_esc = √(2 G M / R)