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Physics - Springs - Problems with Solutions and Tutorials

springs
Using absolute coordinates: A spring has a spring constant of 2 N/m. It vibrates with an amplitude of 5cm. At x=3cm, what is its speed? At x=2cm, what is its speed?

Using initial/final coordinates: There's a mystery spring that's vibrating. I won't tell you anything about it except that at x=3cm, it has a speed of 5.657cm/s and at x= 2cm, it has a speed of 6.481cm/s. Now, tell me it's amplitude and spring constant!


Answer: at x=3, v=5.657cm/s. at x=2, v=6.481cm/s. A=5cm, k=2N/m

Solver Input: see tutorial video

Tutorial video:
springs
A spring has a k = 2 N/m. You stretch it out to 5cm from its equilibrium then let go. What is its speed when it reaches its equilibrium position?

Answer: vmax = 7.071cm/s

Solver Input: see tutorial video

Tutorial video: