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10 cards from this deck
Measures the elasticity of a collision
e=speed of separationspeed of approache = \frac{\text{speed of separation}}{\text{speed of approach}}e=speed of approachspeed of separation
e=vB−vAuA−uBe = \frac{v_B - v_A}{u_A - u_B}e=uA−uBvB−vA
0≤e≤10 \leq e \leq 10≤e≤1
Perfectly elastic collision
Perfectly inelastic collision
mAuA+mBuB=mAvA+mBvBm_A u_A + m_B u_B = m_A v_A + m_B v_BmAuA+mBuB=mAvA+mBvB
Not generally conserved (except when e=1e = 1e=1)
ΔKE=KEinitial−KEfinal\Delta KE = KE_{\text{initial}} - KE_{\text{final}}ΔKE=KEinitial−KEfinal
When e=0e = 0e=0 (perfectly inelastic collision)
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