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Spring Block's Time Period

A block of ma...

Question

A block of mass $4 k g$ hangs from spring of spring constant $k = 400 N / m$ . The block is pulled down through $15 c m$ below and released. What is the kinetic energy when the block is $10 c m$ above the equilibrium position ?

A

5 J

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B

2.5 J

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C

1 J

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D

1.9 J

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Solution

The correct option is B $2.5 J$

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Q. A block of mass 4kg hangs from a spring of spring constant k = 400 N/m. The block is pulled down through 15 cm below and released. What is the kinetic energy when the block is 10 cm above the equilibrium position?

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