Two straight lines drawn on the same displacement-time graph make angles 300 and 60° with time-axis
respectively as shown in figure. What is the ratio of two velocities.
Displacement
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Answer:
Since the slope of the displacement - time graph of uniform motion in one dimension represents the velocity of the object, hence the line showing greater slope in graph corresponds to greater velocity of the object .
Therefore OB represents greater velocity .
Ratio of two velocities
Explanation:
υ
B
υ
A
=
tan60°
tan30°
=
3
3
1
=
3
1
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