A Massless Spring Hangs from the Ceiling

question 13

Multiple Choice

A massless spring hangs from the ceiling.How much does its potential energy increase,if a 28.8-kg mass is attached to it? The spring constant is 4800 N/m.

• A)8.3 J
• B)8.3 kJ
• C)17 kJ
• D)17 J

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