Mathematics

Mathematics

Problem

A particle moves along the xx-axis with acceleration a(t)={3,0≤t≤1,−2,1<t≤4.a(t)=\begin{cases} 3,&0\le t\le 1,\\ -2,&1< t\le 4. \end{cases} If its velocity at t=0t=0 is 5 m/s5\text{ m/s}, what is its velocity at t=4 st=4\text{ s}? a) 66 b) 1414 c) 22 d) 88

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