Question

9. 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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Answer 1

Answer:

1. yes, object moving upward reach its maximum height has final velocity zero but its acceleration is due to gravity which remain constant.
2. yes, object moving in a circle has direction of acceleration perpendicular to velocity because acceleration is due to centripital force which is toward centre of circle.