Energy in Simple Harmonic Motion help?

Question

A .500 kg mass is oscillating on a spring with k= 330 N/m. The total energy of it's oscillation is 3.24 J. What is the speed of the mass when it is .100 m from the EP?

Answer 1

E = (1/2)mv² + (1/2)kx²

 

v = √[(2E - kx²) / m]

 

m = 0.500 kg

k = 330 N/m

E = 3.24 J

x = 0.100 m

 

Just plug these 4 values into the equation for v, and you will have your answer in m/s.  Can you finish from here?