A 051 kg mass at the end of a spring vibrates 90 times per

Question

A 0.51 kg mass at the end of a spring vibrates 9.0 times per second with an amplitude of 0.18 m.

(a) Determine the velocity when it passes the equilibrium point.

m/s

(b) Determine the velocity when it is 0.05 m from equilibrium.

m/s

(c) Determine the total energy of the system.

J

(d) Complete the equation describing the motion of the mass, assuming that x was a maximum at t = 0.

m cos[ ( rad/s )t ]