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Q: Which of the following quantities specifies its motion with direction?
  • A. momentum
  • B. displacement
  • C. velocity
  • D. force
Correct Answer: Option C - Velocity is a physical quantity that specifies its motion with direction. The rate of displacement of a moving object, i.e the displacement in one second, is called the velocity of the object. Velocity is a vector quantity. Its unit is meter / second.
C. Velocity is a physical quantity that specifies its motion with direction. The rate of displacement of a moving object, i.e the displacement in one second, is called the velocity of the object. Velocity is a vector quantity. Its unit is meter / second.

Explanations:

Velocity is a physical quantity that specifies its motion with direction. The rate of displacement of a moving object, i.e the displacement in one second, is called the velocity of the object. Velocity is a vector quantity. Its unit is meter / second.