Kinematics (id: d1710e41e)

本题目来源于试卷: Kinematics，类别为 IB数学

[问答题]
A particle P starts from a po4 )kr5 nc+r;ebtfrt8bad5y(w int O and moves along aqws(3c ui*r(zju7vgn nu :0l0 horizontal straight line. Itssun7qg3 * jcw0lu:r0iv(n(u z velocity$ v \mathrm{~ms}^{-1}$ after t seconds is given by




The following diagram shows the graph of v .



1. Find the initial velocity of particle P .
2. Find the acceleration of the particle in the first second.
3. How many times does the particle change direction in the first 8 seconds. Explain your answer.
4. Find the total distance travelled by the particle in the first 8 seconds.

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