Transcription of Answer Key Chapter 6 - Henry County Schools
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Answer Key Chapter 6 - Henry County Schools
Answer KeyPhysics: Principles and ProblemsSupplemental Problems Answer Key87 Chapter busy waitress slides a plate of apple piealong a counter to a hungry customer sit-ting near the end of the counter. The cus-tomer is not paying attention, and theplate slides off the counter horizontally at m/s. The counter is m long does it take the plate to fallto the floor? y-direction:vyi20, myf5yi1vyit2gt205yi102gt2t5!}2gyi} 5! far from the base of the counterdoes the plate hit the floor?x-direction:vxi m/s, mxf ( m/s)( s) are the horizontal and verticalcomponents of the plate s velocity justbefore it hits the floor? m/svertical:vyf5vyi2gt502( m/s2)( s)5 is on his way out to go groceryshopping when he realizes that he has lefthis wallet at home, so he calls his wife,Yolanda, who opens a high window andthrows DuWayne s wallet down at an angle23 below the horizontal.
Answer Key Physics: Principles and Problems Supplemental Problems Answer Key 89 Method Two: Find v yf component just before the ball hits the wall. v yf, wall 5 v yi 2 gt wall 5 vi sin ui 2 gt wall 5 (21.0 m/s) sin 40.0° 2 (9.80 m/s 2)(1.43 s) 5 2 0.515 m/s
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