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NEET2013PhysicsMotion in Two DimensionsActual

The velocity of a projectile at the initial point A is (2 i +3 j ) m / s . Its velocity (in m / s ) at point B is

Options

  1. A-2 i -3 j
  2. B-2 i +3 j
  3. C2 i -3 j
  4. D2 i +3 j

Correct answer

C. 2 i -3 j

Step-by-step solution

From the figure the X -component remain unchanged, while the Y -component is reverse. Then, the velocity at point B is (2 i -3 j ) ms ⁻¹ .

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