According to the first law of Newton, mass of an object is a qualitative measure of its
Correct answer: A. inertia
- A. inertia
- B. momentum
- C. moment of inertia
- D. force
Explanation
According to Newton's first law of motion, an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. Inertia is the property of matter by which it remains at rest or in uniform motion unless acted upon by an external force. Mass is a measure of inertia, and objects with greater mass have greater inertia.Incorrect Options Explanation:(b) momentum: Momentum is the product of mass and velocity and is a measure of the motion of an object.(c) moment of inertia: Moment of inertia is a measure of an object's resistance to changes in its rotation.(d) force: Force is not directly related to the mass of an object but rather to the acceleration it experiences.
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About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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