A particle moves along a straight line and its velocity depends on time as \( v=4 t-t^{2} \). Th...

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A particle moves along a straight line and its velocity depends on time as \( v=4 t-t^{2} \). Then for first \( 5 \mathrm{~s} \) :
(1) Average velocity is \( 25 / 3 \mathrm{~m} \mathrm{~s}^{-1} \)
(2) Average speed is \( 10 \mathrm{~m} \mathrm{~s}^{-1} \)
(3) Average velocity is \( 5 / 3 \mathrm{~ms}^{-1} \)
(4) Acceleration is \( 4 \mathrm{~m} \mathrm{~s}^{-2} \) at \( t=0 \)
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