A UHart Dynamics experiment consists of collar B (mg = 10 kg)traveling to the left at vr = 1.5 m/s on a frictionless rail when a constant FB = 45 N force is applied to it. The collar is connected through a frictionless pulley system to weight A (mĄ = 3 kg). In the position shown the collar is x, = 1.25 m from the support at C. (a) The speed of collar B as it strikes the support at C if force Fg acts on it throughout. (b) After what distance d should the F, force be removed if the collar is to reach support C with zero velocity?

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