View History Bookmarks People Window Hel sessment And E × , Lsu Home-myLsu Wiley

Question

View History Bookmarks People Window Hel sessment And E × , Lsu Home-myLsu WileyPLUS tps: //edugen.wileyplus.com/edugen/student/mainfr.uni Assignment Gradebook ORION Downloadable eTextbook ment FULL SCREEN BACK NEXT Chapter 06, Problem 85 A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the end of the slide traveling horizontally, As the drawing shows, one person Water slide Number Units the tolerance is +/-2% Question Attempts: Unlimited SAVE FOR LATERU SUBMIT ANSWER 3

Explanation / Answer

given,

horizontal distance traveled = 5 m

time = 0.73 sec

initial vertical velocity = 0 m/s

by second equation of motion

s = ut + 0.5 * at^2

s = 0 + 0.5 * 9.8 * 0.73^2

s = 2.611 m

horizontal velocity = horizontal distance / time

horizontal velocity = 5 / 0.73

horizontal velocity = 6.849 m/s

by conservation of energy

initial energy = final energy

intial energy = mgH

final energy = 0.5 * mv^2 + mgh

mgH = 0.5 * mv^2 + mgh

gH = 0.5 * v^2 + gh

9.8 * H = 0.5 * 6.849^2 + 9.8 * 2.611

H = 5 m

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