Transcription of Answer Key Chapter 4 - Henry County Schools
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Answer Key Chapter 4 - Henry County Schools
Answer KeyPhysics: Principles and ProblemsSupplemental Problems Answer Key75 Chapter and your bike have a combined massof 80 kg. How much braking force has to be applied to slow you from a velocity of 5 m/s to a complete stop in 2 s?a5}vtff22vtii} m/s2F5ma580 kg3( m/s2)5 2200 opening his parachute, a sky diverwith a mass of kg experiences anupward force from air resistance of 150 net force is acting on the sky diver?Fgravity5mg m/s25882 N downwardFnet5 Fair resistance1 FgravityFnet5150 N1(2882 N) 5 2732 N 5730 N is the sky diver s acceleration?a5}Fmnet}5} }5 large helicopter is used to lift a heatpump to the roof of a new building. Themass of the helicopter is andthe mass of the heat pump is 1500 much force must the air exert onthe helicopter to lift the heat pump withan acceleration of m/s2?
3. A large helicopter is used to lift a heat pump to the roof of a new building. The mass of the helicopter is 5.0 310 3 kg and the mass of the heat pump is 1500 kg. a. How much force must the air exert on the helicopter to lift the heat pump with an acceleration of 1.5 m/s 2? F net 5 F lift 1 F overcome gravity 5 ma 1 mg 5 (6.5 310 3 kg)(1.5 m ...
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