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Q. A warehouse worker wants to push a 30 kg box up a loading ramp. The coefficient of kinetic friction between the ramps is 0.28, if the ramp is inclined at 20; conclude the applied force required to keep constant velocity up the ramp.

Q. A 20.00 kg child is on a swing that hangs from 3 m long chains. What is her maximum speed if she swings out to a 45.0^o angle?

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