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Physics 12 Online
OpenStudy (anonymous):

A car moves at a constant acceleration of 3m/s^2. A ball is suspended on the ceiling of the car roof by a string, and the ball does not move, that is, is at rest with respect to the car. What angle does the string make with the vertical?

OpenStudy (vincent-lyon.fr):

Use Newton's second law.

OpenStudy (loser66):

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