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Hooke's law describes a certain light spring of unstretched length 37.0 cm. When one end is attached to the top of a door frame and a 8.00-kg object is hung from the other end, the length of the spring is 40.5 cm.
(a) Find its spring constant.
(b) The load and the spring are taken down. Two people pull in opposite directions on the ends of the spring, each with a force of 150 N. Find the length of the spring in this situation.
I found out (a) is 2.24 kN/m but I don't know how to get to the answer.
So far I've just converted all the units, so 37 cm to .37 m and 40.5 cm to .405 m.
And I guess y would be .405-.37= .035 m
(a) Find its spring constant.
(b) The load and the spring are taken down. Two people pull in opposite directions on the ends of the spring, each with a force of 150 N. Find the length of the spring in this situation.
I found out (a) is 2.24 kN/m but I don't know how to get to the answer.
So far I've just converted all the units, so 37 cm to .37 m and 40.5 cm to .405 m.
And I guess y would be .405-.37= .035 m