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AP EAMCET202421 May 2024Evening ShiftPhysicsMotion in One DimensionActual

The acceleration of a particle which moves along the positive x -axis varies with its position as shown in the figure. If the velocity of the particle is 0.8 ~ms ⁻¹ at x=0 , then its velocity at x=1.4 m is (in ms ⁻¹ )

Options

  1. A1.6
  2. B1.2
  3. C1.4
  4. D0.8

Correct answer

B. 1.2

Step-by-step solution

aligned & For a - x graph & v ^2= u ^2+ _ x ₁ ^ x ₂ adx = u ^2+2 (Area of a-x graph) & v ^2=(0.8)^2+2 [0.4 0.4+ 1 2 (0.4+0.2) 0.4+0.2 . & 0.6] & v ^2=1.44 & v =1.2 ~m / s aligned

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