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JEE Main2010PhysicsLaws of MotionActual

Two fixed frictionless inclined plane making an angle 30^ and 60^ with the vertical are shown in the figure. Two block A and B are placed on the two planes. What is the relative vertical acceleration of A with respect to B ?

Options

  1. A4.9 ~ms ⁻² in horizontal direction
  2. B9.8 ~ms ⁻² in vertical direction
  3. Czero
  4. D4.9 ~ms ⁻² in vertical direction

Correct answer

D. 4.9 ~ms ⁻² in vertical direction

Step-by-step solution

m g =m a a=g where a is along the inclined plane vertical component of acceleration is g ^2 relative vertical acceleration of A with respect to B is

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