A 4-kg collar can slide on a frictionless horizontal rod and is attached to a spring of constant k. It is acted upon by a periodic force of magnitude P = Pm sin, ωft where 9 Pm = N and 5 ωf = rad/s. Determine the value of the spring constant k knowing that the motion of the collar has an amplitude of 150 mm and is

(a) In phase with the applied force,

(b) Out of phase with the applied force.

Transcribed Image Text:

P = P, sin ayt