Rotational motion and angular × wei Practice Another Version e ASpace Station Is

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Rotational motion and angular × wei Practice Another Version e ASpace Station Is Constructex x Secure https://wwwwebassign net web Student Assignment-Responses submitd ep-1184 (a) What angular momentum does the space station acquire? 310717098 kg·m2/s (b) For what time interval must the rockets be fired if each exerts a thrust of 135 N? 7672-027 s Need Help?Read It 35. 0M1 points | Previous Answers SerPSET9 11.P031 My Notes Ask Your Teacher A playground merry-go-round of radius R = 1.80 m has a moment of inertia 1-260 kg·m2 and is rotating at 9.0 rev/min about a frictionless vertical axle. Facing the axle, a 22.0-kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round? 59.090909 X Does it make sense that the angular speed would be greater if the child jumps onto the merry-go-round moving towards the central axle? rev/min Need Help? Read ItWatch It Your work in question(s) 30 will also be submitted or saved. Submit Assignment Save Assignment Progress Practice Another Version 36. 6/6 points | Previous Answers SerPSET9 11.P.033.MI. My Notes Ask Your Teacher

Explanation / Answer

Inertia of child = mr^2

22 x 1.8^2 = 71.28 kg-m^2

9 rpm/9.55 = 0.942 rad/s

angular momentum = Inertia x omega (rad/s)

(260 x 0.942) + (71.28 x 0) = 244.92 kg-m^2/s

244.92 = (260 + 71.28) omega

omega = 0.74 rad/s

0.74 x 9.55 = rpm = 7.06 rev/min

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