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NEET2009PhysicsMotion in One DimensionActual

A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S ₁ and that covered in the first 20 seconds is S ₂ then :

Options

  1. AS ₂= S ₁
  2. BS ₂=2 ~S ₁
  3. CS ₂=3 ~S ₁
  4. DS ₂=4 ~S ₁

Correct answer

D. S ₂=4 ~S ₁

Step-by-step solution

s = 1 2 at ^2 aligned & s ₂ ~s ₁ = ( 20 10 )^2=4 & ~s ₂=4 ~s ₁ aligned

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