A particle starts from origin O from rest and moves with a uniform acceleration along the positive x-axis. Identify all figures that correctly represent the motion qualitatively. [JEE Main 8-4-2019 Afternoon] |
(a = acceleration, v = velocity, x = displacement, t = time) |
A) , ,
B)
C) , ,
D) ,
Correct Answer: C
Solution :
[c] Given initial velocity u=0 and acceleration is constant |
At time t |
\[v=0+at\,\Rightarrow v=at\] |
also \[x=0(t)+\frac{1}{2}a{{t}^{2}}\Rightarrow x=\frac{1}{2}a{{t}^{2}}\] |
Graph [a] ; [b] and [d] are correct. |
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