Which physical quantity is represented by the ratio of momentum and velocity of the body?

The correct answer is Mass.

Key Points

•  Mass:-
  • Mass is a quantitative measure of inertia, a fundamental property of all matter.
  • It is the resistance that a body of matter offers to a change in its speed or position upon the application of a force.
  • Mass is represented by the ratio of momentum and velocity of the body.
  • The SI unit of mass is kg which is defined in terms of Planck's constant.

Additional Information

• Velocity:-
  • Velocity is the speed of an object moving in a definite direction.
  • It can be uniform or variable.
  • It is a vector quantity.
• Acceleration:-
  • Acceleration is a measure of the change in the velocity of an object per unit of time.
  • The SI unit of acceleration is m s^-2.
  • Uniform Acceleration:-
    • If an object travels in a straight line and its velocity increases or decreases by an equal amount in equal intervals is called uniform acceleration.
  • Non-uniform Acceleration:-
    • When an object travels and its velocity changes at a non-uniform rate, then it is non-uniform acceleration.
• Force:-
  • It is the product of mass and acceleration.
  • A force arises due to interaction between two objects.
  • It has magnitude as well as direction.
  • Force acting on an object may cause a change in its state of motion or a change in its shape.
  • A force can act on an object with or without being in contact with it.