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.
a) This is possibleEg: when a ball is thrown to a height its velocity is zero. (For a ball G = 9.8 m/s2)
b) This is possibleEg: when a car moves in a curved line, its acceleration is perpendicular to given direction.
