From the velocity-time graph, given in figure of a particle moving in a straight line, one can c...

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From the velocity-time graph, given in figure of a particle moving in a straight line, one can conclude that
(1) Its average velocity during the \( 12 \mathrm{~s} \) interval is \( 24 / 7 \mathrm{~m} \mathrm{~s}^{-1} \).
(2) Its velocity for the first \( 3 \mathrm{~s} \) is uniform and is equal to \( 4 \mathrm{~ms}^{-1} \).
(3) The body has a constant acceleration between \( t=3 \mathrm{~s} \) and \( t=8 \mathrm{~s} \).
(4) The body has a uniform retardation from \( t=8 \mathrm{~s} \) to \( t=12 \mathrm{~s} \).
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