A projectile has initial velocity (2hat i +3hat j )text m/s at point A (at ground level). At point B (on the x-axis, same height as A), its velocity is:

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NEET Physics QUESTION #7342

Question 1

A projectile has initial velocity $(2\hat{i}+3\hat{j})\text{ m/s}$ at point A (at ground level). At point B (on the x-axis, same height as A), its velocity is:

$2\hat{i}+3\hat{j}$
$-2\hat{i}-3\hat{j}$
$-2\hat{i}+3\hat{j}$
$2\hat{i}-3\hat{j}$✔️

Correct Answer Explanation

Horizontal component is unchanged throughout: $v_x = 2\text{ m/s}$.

When the projectile returns to the same height, the vertical component reverses: $v_y = -3\text{ m/s}$.

Velocity at B $= \mathbf{2\hat{i} - 3\hat{j}}$

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