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NEET2009PhysicsMotion in One DimensionActual

A particle starting from the origin (0,0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are ( 3 , 3) . The path of the particle makes with the x -axis an angle of

Options

  1. A30^
  2. B45^
  3. C60^
  4. D0^

Correct answer

C. 60^

Step-by-step solution

Draw the situation as shown. OA represents the path of the particle starting from origin O(0,0) Draw a perpendicular from point A to x-axis. Let path of the particle makes an angle with the x -axis, then aligned & = slope of line O A & = A B O B = 3 3 = 3 or & =60^ aligned

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