1. An 85.0 kg child runs in a straight line towards the edge of a stationary merry-go-round at 2.50 m/s. The merry-go-round is in the shape of a disk and has a diameter of 4.50 m and a mass of 235 kg. The child jumps onto and stays on the merry-go-round.
-What is the
-What is the moment of inertia of the merry-go-round, in kg m2? ______
-What is the final angular speed, in radians/s, of the child-merry-go-round system after the collision? ____
2. For the system shown above with a 45 kg sign suspended from a 12 kg, 2.8 m horizontal beam with one vertical support at the midpoint of the beam and the other at the end of the beam (the tension in these two equally share the weight of the sign), what is the tension in the diagonal cable when the angle between the beam and cable is 33°?
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