A spring stretches 2.5 cm when a 4 kg object is hung from it. if the 4 kg object is moved:

spring-stretches

#1

A spring stretches 2.5 cm when a 4 kg object is hung from it. if the 4 kg object is moved:

A) How far will the spring stretch if a 1.5 kg object is hung on it?

B) How much work must an external agent do to stretch the same spring 4 cm from its unstretched position?

Answer:

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