Question #216305

A mass-spring system undergoes simple harmonic motion on a frictionless surface with amplitude 1.00 (meters) and angular frequency ω=

ω= 6.8 (rad/s).

Calculate the speed of the mass at the point where 1/6 of the total energy is kinetic energy.


1
Expert's answer
2021-07-12T16:27:53-0400

Answer

Total energy

E=12mω2A2E=\frac{1}{2}m\omega^2A^2


And kinetic energy

KE=112mω2A212mv2=112mω2A2KE=\frac{1}{12}m\omega ^2A^2\\\frac{1}{2}mv^2=\frac{1}{12}m\omega ^2A^2\\


v=ωA6v=6.8×16=2.77m/sv=\frac{\omega A}{\sqrt{6}}\\v=\frac{6.8×1}{\sqrt{6}}=2.77m/s








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Comments

Vikash
14.07.21, 14:23

Thank you ❤

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