JEE MAIN - Physics (2017 (Offline) - No. 22)
A body is thrown vertically upwards. Which one of the following graphs correctly represent the velocity vs
time?
_en_22_1.png)
_en_22_2.png)
_en_22_3.png)
_en_22_4.png)
Explanation
Motion of the particle is shown below
_en_22_5.png)
Initially speed of the particle is maximum(v0) and at heigth h velocity will become zero, then particle will move downward and velocity will increase gradually and become maximum when it reaches the ground. And acceleration in this entire motion will be -g, so slope of v - t will be same and negative.
So only Option (D) will be correct.
Initially speed of the particle is maximum(v0) and at heigth h velocity will become zero, then particle will move downward and velocity will increase gradually and become maximum when it reaches the ground. And acceleration in this entire motion will be -g, so slope of v - t will be same and negative.
So only Option (D) will be correct.
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