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Kinetics is a fundamental branch of mechanics, which is itself a part of classical physics. While kinematics deals with describing motion without considering its causes, kinetics focuses on understanding why objects move and how forces influence motion.
Force: A push or pull on an object that can cause a change in its motion.
Acceleration: Rate of change of velocity, often caused by applied forces.
Newton’s Laws of Motion:
First Law: Objects remain at rest or in uniform motion unless acted on by an external force.
Second Law: Force equals mass times acceleration (F = ma).
Third Law: Every action has an equal and opposite reaction.
Energy Considerations: Kinetics also examines how work and energy relate to the motion of objects.
Engineering: Design of machines and structures to withstand forces.
Automobiles: Understanding motion, braking, and collision dynamics.
Sports Science: Optimizing motion and performance of athletes.
Physics Experiments: Calculating motion under gravity, friction, and other forces.
Force and energy: These are studied in mechanics and work-energy principles, but kinetics specifically connects them to motion.
Friction: A type of force; kinetics studies it only as part of motion analysis.
Heat and temperature: Related to thermodynamics, not kinetics.
Kinetics = study of motion and its causes
Focuses on forces and their effects on objects
Distinguished from kinematics, which describes motion without causes
Applications: engineering, sports, automobiles, physics experiments
👉 Correct Answer: Option 1 – Motion and its causes
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