Momentum Equation:
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The momentum equation (p = m × v) calculates the momentum of an object, where p is momentum, m is mass, and v is velocity. Momentum is a vector quantity that describes the quantity of motion an object has.
The calculator uses the momentum equation:
Where:
Explanation: The equation shows that momentum is directly proportional to both mass and velocity of an object.
Details: Momentum is a fundamental concept in physics, particularly in mechanics. It's conserved in isolated systems and is crucial for understanding collisions, explosions, and other interactions between objects.
Tips: Enter mass in kilograms and velocity in meters per second. All values must be valid positive numbers.
Q1: What are the SI units for momentum?
A: The SI unit for momentum is kilogram-meter per second (kg·m/s).
Q2: Is momentum a scalar or vector quantity?
A: Momentum is a vector quantity, meaning it has both magnitude and direction.
Q3: How is momentum related to force?
A: Force is equal to the rate of change of momentum (F = Δp/Δt), as described by Newton's second law of motion.
Q4: What is the law of conservation of momentum?
A: In a closed system with no external forces, the total momentum before a collision equals the total momentum after the collision.
Q5: How does momentum differ from kinetic energy?
A: Momentum depends on both mass and velocity (p = m×v), while kinetic energy depends on mass and the square of velocity (KE = ½mv²). Momentum is conserved in all collisions, while kinetic energy is only conserved in elastic collisions.