A 48-Kg Block Attached to an Ideal Spring Executes Simple Harmonic

question 71

Multiple Choice

A 4.8-kg block attached to an ideal spring executes simple harmonic motion on a frictionless horizontal surface. At time t = 0.00 s, the block has a displacement of $- 0.90 \mathrm {~m}$ a velocity of $- 0.80 \mathrm {~m} / \mathrm { s }$ and an acceleration of $+ 2.9 \mathrm {~m} / \mathrm { s } ^ { 2 }$ The force constant (spring constant) of the spring is closest to

• A) 15 N/m.
• B) 14 N/m.
• C) 13 N/m.
• D) 12 N/m.
• E) 11 N/m.

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