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Most Important Selected Qs for JEE AdvancedPhysicsMotion in One Dimension

Two balls are dropped from the same point after an interval of 1 second. Their separation 3 second after the release of the second ball. ( g =10 ~m / s ^2 )

Options

  1. A25 m
  2. B30 m
  3. C35 m
  4. D40 m

Correct answer

C. 35 m

Step-by-step solution

aligned U _ rel & = g t =10 1 & =10 ~m / s S ₁ & = 1 2 ~g (1)=5 ~m ~S _ rel & = S ₁+ U _ ret + 1 2 a _ ret t ^2=5+10 3+0=35 ~m aligned

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