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The velocity of a projectile at the initial point A is $(2 \hat{i} + 3 \hat{j})$ ms^-1. Its velocity (in ms^-1) at point B is

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-2i^-3j^

-2i^+3j^

2i^-3j^

2i^+3j^

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detailed solution

Correct option is C

From the question's figure, the x-component remain unchanged, while the y-component is reversed. Then, the velocity at point B is (2i^-3j^) ms-1.

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The velocity of a projectile at the initial point A is (2i^+3j^) ms-1. Its velocity (in ms-1) at point B is

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The velocity of a projectile at the initial point A is $(2 \hat{i} + 3 \hat{j})$ ms^-1. Its velocity (in ms^-1) at point B is