Question

Which of the following quantities specifies its speed with direction?
1. Displacement
2. Momentum
3. Velocity
4. Force

Answer 1

Correct Answer - Option 3 : Velocity

The correct answer is Velocity

• A vector quantity is specified by its magnitude as well as the direction associated with it.
  • For example: - Acceleration, velocity, displacement, and angular velocity.
• Velocity is defined as a vector measurement of the rate and direction of motion of an object.
  • velocity formula when an object moving in a straight line: r = d / t
    • r is the rate or speed, d is the distance moved, t is the time it takes to complete the movement.
  • SI unit: meter/second.
  • Other units: mph, ft/s, Km/h.

Displacement	Displacement is a vector quantity that refers to "how far out of place an object is". It is the object's overall change in position.
Momentum	Momentum is a vector quantity that is a product of the mass (weight) of a particle and its velocity (speed). SI unit: kilogram meter per second (kg⋅m/s). Newton's 2nd law of motion related to the momentum that is the rate of change of momentum in an object is directly proportional to the force applied.
Force	Force is defined as a push or pulls exerted on one object by another. Force measured in Newtons (denoted N, where 1 N is the force required to give a 1 kg mass an acceleration of 1 m/s²).