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Motion in A Plane question

2013 · Q143
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Motion in A Plane question

2013 · Q143

NEETPhysicsMotion in A PlaneMCQ+4 / −1
The velocity of a projectile at the initial point A is (2i^+3j^)\left( {2\widehat i + 3\widehat j} \right)(2i+3j​) m/s. It's velocity (in m/s) at point B is NEET 2013 Physics - Motion in a Plane Question 42 English
  1. A
    2i^−3j^2\widehat i - 3\widehat j2i−3j​
  2. B
    2i^+3j^2\widehat i + 3\widehat j2i+3j​
  3. C
    −-−2i^−3j^2\widehat i - 3\widehat j2i−3j​
  4. D
    −-−2i^+3j^2\widehat i + 3\widehat j2i+3j​
View written solutionFree

Correct answer: A

NEET 2013 Physics - Motion in a Plane Question 42 English Explanation
At point B X component of velocity remains unchanged while Y component reverses its direction.
$ \therefore $ The velocity of the projectile at point B is $$2\widehat i - 3\widehat j$$ m/s.
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