NCERT Solutions for Class 9 Science Chapter 8
Motion
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-107
Questions No-2
What can you say about the motion of an object whose distance-time graph is a straight line parallel to the time axis?
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When the slope of distance-time graph is a straight line parallel to time axis, the object is stationary.
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Distance-Time Graph: Straight Line Parallel to Time Axis
Graph Characteristics:
– Shape: The distance-time graph appears as a straight horizontal line parallel to the time axis.
– Representation: This line signifies a specific type of motion or lack thereof.
Motion Characteristics:
– Stationary Object:
– The straight line on the graph indicates that the object is not in motion.
– The object remains stationary or at rest throughout the recorded time.
– Zero Velocity:
– The line’s parallel nature to the time axis implies that the object’s displacement remains constant or unchanged over time.
Interpretation:
– No Motion Occurring:
– The absence of any incline or decline in the line suggests that there is no movement or change in the object’s position.
– Constant Position:
– The object maintains a consistent location or remains at rest during the entire time interval represented by the graph.
Conclusion:
– A distance-time graph featuring a straight line parallel to the time axis signifies an object that is stationary or at rest. There is no alteration in its position or displacement over the recorded period, indicating a constant and unmoving location.