1) If the velocity of a particcle is zero, can its acceleration be zero? Explain.(adsbygoogle = window.adsbygoogle || []).push({});

2) Consider the floowing combinations of signs and values for velocity and accleration of a particle with respect to a one-dimensional x axis.

Velocity | Acceleration

- + | +
- + | -
- + | 0
- - | +
- - | -
- - | 0
- 0 | +
- 0 | -

Describe what a particle is doing in each case, and give a real-life example for an automobile on an east-west one dimensional axis, with east considered the positive direction.

I do not understand this at all! Please please please please help if you can with as much as you can. ANY help will be greatly appreciated because I have no idea what to do.

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# Motion Problems

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