.............. is the natural tendency of an object to remain at rest or in motion with constant velocity?
Correct answer: B. Inertia
- A. Friction
- B. Inertia
- C. Mass
- D. Weight
Explanation
Inertia is the property of an object to resist changes in its state of motion. An object at rest tends to stay at rest, and an object in motion tends to remain in motion at a constant velocity unless acted upon by an external force. Inertia is directly related to mass: the greater the mass, the greater the inertia.
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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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