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PHYSICAL QUANTITY

Body impulse: formulas and units of measurement

Body impulse: symbol p, unit kg m/s. Formulas and explanations for Mechanics.

pkilogram-meter per second

KEY CONNECTIONS

Formulas

3
p = mv
F = Δp / Δt
FΔt = Δp

Note: In the formulas for changing momentum, F is the average resultant force, and FΔt is the impulse of the force. The moment of force is denoted by M and is used to describe the rotational action of a force.

NOTATION

Quantities in formulas

The momentum of a body is a measure of its mechanical motion.
Mass is a scalar physical quantity that is a measure of the inertia of a body.
Speed is the speed and direction of change in body position.
The average resultant force is the ratio of the change in the momentum of a body to the period of time during which it occurred.
Change in momentum is the difference between the final and initial momentum of a body.
Time interval - the duration of the process under consideration.
Force - in the product FΔt, the value F denotes the average resultant force, and the entire product is the impulse of the force.

THEORY

Related Lessons

Momentum and jet propulsion9 class · 30 minMomentum and its conservation10 class · 22 min

PRACTICE

Related tasks

Conservation laws10 class · 17 problems

DIRECTORY

Body weightP · NTimet, τ · withHeight and depthh · mPressurep · PaSpring stiffnessk · N/mEfficiencyη · %Friction coefficientμ · dimensionlessMassm · kg

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