In the study of classical mechanics, different physical quantities and forces describe how objects move and interact. Match each mechanical concept with its correct physical definition.
- DisplacementThe straight-line vector pointing directly from an object's starting position to its final position
- Average speedThe scalar rate calculated by dividing total path distance covered by total elapsed time
- Normal forceThe perpendicular support force exerted by a solid surface on an object in contact with it
- Unbalanced forceA non-zero net force acting on a body that causes a change in its velocity or acceleration
Answer
Displacement matches with the straight-line vector from starting to final position; Average speed matches with total path distance divided by elapsed time; Normal force matches with the perpendicular support force exerted by a surface; Unbalanced force matches with a non-zero net force causing a change in velocity.
Each concept correctly aligns with its precise definition in classical kinematics and dynamics: displacement measures the net position vector, average speed measures scalar distance over time, the normal force provides perpendicular support, and an unbalanced force produces net acceleration.
Step-by-Step Solution
Key Concept
Kinematic vector and scalar quantities alongside contact and net forces in mechanics
Estimated Time:1m 0s