State which of the following situations are possible and give an example for each of these: (a)an object with a constant acceleration but with zero velocity. (b)an object moving in a certain direction with an acceleration in the perpendicular direction.

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(a) Possible When a ball is thrown up at maximum height, it has zero velocity, although it will have constant acceleration due to gravity, which is equal to 9.8 m/s2. (b) Possible When a car is moving in a circular track, its acceleration is perpendicular to its direction.
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(a)Possible When a ball is thrown up at maximum height, it has zero velocity, although it will have constant acceleration due to gravity, which is equal to 9.8 m/s2. (b)Possible When a car is moving in a circular track, its acceleration is perpendicular to its direction. read less
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