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OpenStudy (anonymous):
Q. A train is moving along a straight horizontal track. A pendulum from the roof of one of the carriage of the train is inclined at 4 degrees to the vertical. Calculate the acceleration of the train.
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OpenStudy (vincent-lyon.fr):
Hint: draw a free body diagram of the bob of the pendulum.
OpenStudy (anonymous):
I don't know how to do so.
OpenStudy (vincent-lyon.fr):
Draw the pendulum and draw all forces acting on it. Then apply N's second law of motion.
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