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BITSAT2017PhysicsMathematics in PhysicsActual

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

D. 2 i ^ + 3 j ^

Step-by-step solution

From the figure, the X -component remains unchanged while the Y -component is reverse. Then, the velocity at point B is 2 i ^ + 3 j ^   m   s - 1 .

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