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State which of the following situations ...

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.

Text Solution

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(a) Yes. An object falling freely from a certain height.
(b) Yes. An object performing uniform circular motion.
[At every point on the circular path, the velocity is tangential to the circle at that point and acceleration is radial towards the centre of a circle.]
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