A mass–spring system with an iron ball of weight W = 98 nt (about 22 lb) kept in a medium with negligible resisting force. The spring is such that the ball stretches it 1.09 m (about 43 in.), how many cycles per minute will the system execute? What will its motion be if we pull the ball down from rest by 16 cm (about 6 in.) and let it start with zero initial velocity?

A mass–spring system with an iron ball of weight W = 98 nt (about 22 lb) kept in a medium with negligible resisting force. The spring is such that the ball stretches it 1.09 m (about 43 in.), how many cycles per minute will the system execute? What will its motion be if we pull the ball down from rest by 16 cm (about 6 in.) and let it start with zero initial velocity?

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