A 0.500-kg glider, attached to the end of an ideal spring with force constant k = 450 N/m, undergoes SHM with an amplitude of 0.040 m. Compute (b) the speed of the glider when it is at x = -0.015 m.

(III) A pinball machine uses a spring launcher that is compressed 6.0 cm to launch a ball up a 22° ramp. Assume that the pinball is a solid uniform sphere of radius r = 1.0 cm and mass m = 25g. If it is rolling without slipping (Section 10–9) at a speed of 3.0 m/s when it leaves the launcher, what is the spring constant of the spring launcher?