The velocity-time graph of a particle moving along a straight line is shown in figure The rate o...

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The velocity-time graph of a particle moving along a straight line is shown in figure The rate of acceleration and deceleration
\( \mathrm{P} \) is constant and it is equal to \( 5 \mathrm{~ms}^{-2} \). If the average velocity during

W the motion is \( 20 \mathrm{~m} \mathrm{~s}^{-1} \), then
The value of \( t \) is
(1) \( 5 \mathrm{~s} \)
(2) \( 10 \mathrm{~s} \)
(3) \( 20 \mathrm{~s} \)
(4) \( 5 \sqrt{2} \mathrm{~s} \)
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