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? Neglect all forms of friction.

Transcribed Image Text:

L-h h OSS Fig. 6-5