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18.12.2019 •
Physics
Does an object moving in uniform circular motion have constant centripetal acceleration?
true
false
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Ответ:
True
Explanation:
An object moving in uniform circular motion is an object moving at constant speed on a circular path.
The centripetal acceleration of such an object is given by
where
v is the speed of the object
r is its distance from the centre of the trajectory
The object in the problem is moving in uniform circular motion: this means that its speed, v, is constant, and its distance from the centre, r, is constant as well. Since the centripetal acceleration depends only on these two quantities, then we can conclude that the centripetal acceleration is constant as well.
Ответ: