Momentum: p = mv

Mass and speed together decide how much momentum an object has.

10m

15m

20m

🟢 StartFinish 🏁

LANE 1

mediumm₁=10kg · v₁=6m/s🚛m₁

LANE 2

mediumm₂=4kg · v₂=6m/s⚽m₂

📏 Bigger object = more mass

Physics Formula

p = mv

p₁ = 10 × 6 = 60 kg·m/s
p₂ = 4 × 6 = 24 kg·m/s

Momentum Meter

Object 1 · p₁60 kg·m/s

LowHigh

Object 2 · p₂24 kg·m/s

LowHigh

1More mass → more momentum: Keep speed fixed, raise a Mass slider. The object grows and its momentum bar fills up.
2More speed → more momentum: Keep mass fixed, raise Velocity. Watch the object race across the track and the bar shoot up.
3Same momentum, heavier = slower: Toggle Same Momentum Mode. Velocity auto-adjusts so both bars stay equal.

If momentum is fixed and mass increases, what happens to speed?