135s Classroom → 35s Sub-90 Target27-Q Physics Mock
Archetype Sub-90 Dry-Wipe Invariant (1D Momentum Conservation, Vector Rebound Impulse (FΔt = Δp) & Collisions): Draw a (+) arrow on the page before writing a single number: rebounding off a wall ALWAYS gives |Δp| = m(|v| + |u|), and kinetic energy relates to momentum via E_k = p² / (2m).
sub90 ESATARCH-P-08: 1D Momentum Conservation, Vector Rebound Impulse (FΔt = Δp) & CollisionsPhysics
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SUB-90 ZONE (<40S)
0.0s40s Sub-9090s ESAT Budget150s Classroom
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Physics•ARCH-P-08•Standard 5-Option
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