Hanging Weight
PHYSICS URGENT HELP please please – Hanging Weight?
Hanging Weight
https://tycho-s.phys.washington.edu/cgi/courses/shell/common/showme.pl?courses/phys114/autumn07/homework/04d/hangingspring_NWT/hang1.gif
The drawing shows three identical springs hanging from the ceiling. Nothing is attached to the first spring, while a 4.49 N block hangs from the second spring. A block of unknown weight hangs from the third spring. From the drawing, determine the
a) spring constant in N/m
k = N/m
HELP: Use Hooke’s law
b) weight of the unknown block
W = N
HELP: Use Hooke’s law again
Where are you stuck? They’ve told you how to do the problem. Both steps are a matter of plugging the known values into Hooke’s Law and solving for the unknown.
a) Use the weight and distance from the second spring to get the spring constant. Since the three springs are identical, they’ll all have the same constant.
b) Given that constant and the distance for the third spring, you use Hooke’s Law to get the weight.
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