Question

A 12 cm long spring is attached to the ceiling. When a 2.4 kg mass is...

A 12 cm long spring is attached to the ceiling. When a 2.4 kg mass is hung from it, the spring stretches to a length of 17 cm.

(a) What is the spring constant k?
N/m

(b) How long is the spring when a 3.2 kg mass is suspended from it?
cm

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