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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Physics
Chapter
Motion in One Dimension

NTA Abhyas 2020 · Physics · Motion in One Dimension

Displacement x versus t^ 2 graph is shown for a particle. The...

Displacement xx versus t2t^{2} graph is shown for a particle. The acceleration of the particle is

Displacement x versus t^ 2 graph is shown for a particle. The acceleration of the particle is

Options

  1. A4ms−24ms^{- 2}
  2. B8ms−28ms^{- 2}
  3. CZero
  4. D2ms−22ms^{- 2}

Correct answer

A. 4ms−24ms^{- 2}

Step-by-step solution

Displacement x versus t^ 2 graph is shown for a particle. The acceleration of the particle is

From the graph,

x=Slope(t2)x = Slope ( t^{2} )

x=2−01−0(t2)x = \dfrac{2 - 0}{1 - 0} ( t^{2} )

x=2t2x = 2t^{2}

dxdt=4t\dfrac{dx}{dt} = 4t

d2xdt2=4\dfrac{d^{2}x}{dt^{2}} = 4

a = 4ms^{- 2} \left[∵ \dfrac{d^{2}x}{dt^{2}} = a\right]
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