Momentum Calculator

Momentum Explained

Linear momentum p = mv is a vector quantity measuring the "quantity of motion". It is conserved in all isolated systems — this is one of the most powerful principles in physics.

• Units: kg·m/s (equivalent to N·s)
• Newton's 2nd Law (vector form): F = dp/dt
• Elastic collision: Both momentum AND kinetic energy are conserved
• Inelastic collision: Momentum is conserved; KE is NOT
• Impulse: J = Δp = FΔt — the change in momentum equals force × time

📚 Recommended Textbooks

ℹ Amazon Associate — qualifying purchases support this free site.