Correct option is D
(d) Speed
The slope of a distance-time graph represents speed because speed is defined as the rate of change of distance with respect to time. Mathematically, speed = distance/time.
Information Booster:
- Steeper the slope, higher the speed.
- A horizontal line means zero speed (object at rest).
- Curved graph indicates acceleration.
- Velocity-time graph slope gives acceleration.
- Area under velocity-time graph gives displacement.
Additional Information:
- Momentum = mass × velocity.
- Acceleration = change in velocity/time.
- Force = mass × acceleration (Newton’s Second Law).
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