A 170 g block connected to a light spring with a force constant of k = 4N/m oscillates on a horizontal, frictionless surface. The block is released from rest with an initial displacement xi = 5cm from equilibrium.
(A) What is the maximum magnitude of the force exerted by the spring during this motion?
(B) At what value of x is the force from the spring equal to P= 48% of the maximum force?
(C) At what value ofx is the speed of the block equal to 48% of its maximum speed?