Q4. (15 pts). A block of mass M = 1.2 kg is moving upward on a...

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Answer 1

Answer #1

Here,

let the spring constant is k

Using conservation of energy

initial mechanical energy = final mechanical energy

0.50 * 1.2 * 5^2 + 0 = 0.50 * k * 0.20^2 + 1.2 * 9.8 * (0.20 + 1) * sin(30 degree)

solving for k

k = 397.2 N/m

the value of spring constant is 397.2 N/m

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Answer 2

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