Multiple choice

Momentum of a body is defined as

  1. rate of change of velocity

  2. mass x velocity

  3. mass x acceleration

  4. none of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Momentum (p) is a vector quantity defined as the product of an object's mass and its velocity (p = mv). It represents the quantity of motion and is conserved in closed systems. Mass × acceleration is force, not momentum.