A spring scale hung from the ceiling stretches by 5.3 cm when a 1.8 kg mass is hung from it. The 1.8 kg mass is removed and replaced with a 2.5 kg mass.
Apply Hooks law
F = kx
k = F/x
= mg/x
= 1.8 (9.8)/5.3* 10^-2)
=332.83 N/m
when m = 2.5 kg
x= F/k = 2.5(9.8)/332.83
= 7.36 cm
A spring scale hung from the ceiling stretches by 5.3 cm when a 1.8 kg mass...
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