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23 Nov 2019
Hooke's law describes a certain light spring of unstretchedlength32.0 cm. When one end is attached tothe top of a door frame,and a 7.20-kgobject is hung from the other end, the length of thespring is42.50 cm.
(a) Find its spring constant.
1 kN/m
(b) The load and the spring are taken down. Two people pullinopposite directions on the ends of the spring, each with a forceof170 N. Find the length of the springin this situation.
2 m
Hooke's law describes a certain light spring of unstretchedlength32.0 cm. When one end is attached tothe top of a door frame,and a 7.20-kgobject is hung from the other end, the length of thespring is42.50 cm.
(a) Find its spring constant.
1 kN/m
(b) The load and the spring are taken down. Two people pullinopposite directions on the ends of the spring, each with a forceof170 N. Find the length of the springin this situation.
2 m
1 kN/m
(b) The load and the spring are taken down. Two people pullinopposite directions on the ends of the spring, each with a forceof170 N. Find the length of the springin this situation.
2 m
Deanna HettingerLv2
5 Sep 2019
