2 years ago

A 1.50 x 109 kg railroad car moving at 7.00 m/s to the north collides with

Physics

1 answer:

barxatty [35]2 years ago

8 0

GIVE ME YOUR MONEY

Explanation:

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Answer:

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Explanation:

The period of the spring is expressed according to the expression;

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Given

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$T = 2 \pi \sqrt{\frac{m}{k} } \\3.5 = 2 (3.14) \sqrt{\frac{5.5}{k} } \\3.5 = 6.28 \sqrt{\frac{5.5}{k} } \\\frac{3.5}{6.28} = \sqrt{\frac{5.5}{k} } \\0.557 = \sqrt{\frac{5.5}{k} } \\square \ both \ sides\\0.557^2 = (\sqrt{\frac{5.5}{k} })^2 \\0.3106 = \frac{5,5}{k}\\k = \frac{5.5}{0.3106}\\k = 17.71N/m$

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