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Statement of a problem № 2522

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A ball at the end of a 180-cm long string swings as a pendulum as shown in Fig. 6-5. The ball’s speed is 400 cm/s as it passes through its lowest position. (a) To what height h above this position will it rise before stopping? (b) What angle does the pendulum then make to the vertical?

Solution:
A ball at the end of a 180-cm long string swings as a pendulum as shown in Fig.

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