KinematicsMedium
Question
The following plots show variation of velocity $(v)$ with time $(t)$ of a ball thrown vertically upward, and falling back. Which of the following plots is/are correct?
A. 
B. 
C. 
D. 
E. 
Options
A.C only
B.D only
C.B only
D.A and E only
Solution
Sol. [Key Concept: Velocity–time graph of a vertically thrown ball] During the whole journey, acceleration due to gravity is vertically downward.
Therefore, slope of velocity vs time curve should be negative throughout the journey.
∴ Statement C is correct
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