Three identical (massless) springs are hungfrom the ceiling. Spring 1: Nothing h

Question

Three identical (massless) springs are hungfrom the ceiling.
Spring 1: Nothing hung from spring. The spring's bottom is0.2 m below the ceiling.
Spring 2: A 5 N object is hungfrom the spring. The spring's bottom is 0.6 m below the ceiling.
Spring 3: An object of unknown weight is hung from thespring. The spring's bottom is 0.8 m belowthe ceiling.
a.) Find the spring constant that each springhas in. __________ N/m
b.) Find the weight of the unknownobject._________ N
Three identical (massless) springs are hungfrom the ceiling.
Spring 1: Nothing hung from spring. The spring's bottom is0.2 m below the ceiling.
Spring 2: A 5 N object is hungfrom the spring. The spring's bottom is 0.6 m below the ceiling.
Spring 3: An object of unknown weight is hung from thespring. The spring's bottom is 0.8 m belowthe ceiling.
a.) Find the spring constant that each springhas in. __________ N/m
b.) Find the weight of the unknownobject._________ N

Explanation / Answer

Three identical (massless) springs are hungfrom the ceiling.
.....
a.) Find the spring constant that each springhas in. __12.5___ N/m F=W=kx k = F/x k = 5 / ( 0.6 - 0.2) k=12.5N/m
b.) Find the weight of the unknownobject.___7.5___ N

since F= W= kx
W= 12.5 ( 0.8 - 0.2) W= 7.5N That should do it.

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