Physics 11 Projectile Motion Learning Targets: I can: ü Calculate the horizontal and vertical component of a velocity vector ü Solve problems involving projectiles at an angle So far, we have worked with kinematic problems in _____ dimension. But what happens if a velocity is at an angle? Example: Alyssa is skateboarding at a constant velocity of 10 ! " 14° E of N. Find her velocity in both the North and East direction. Since we can use trigonometry to split components of a vector up, we can use the kinematic equations to solve problems involving a projectile. We know that gravity _______________ an object at a constant rate of ___________, so a projectile will only stay in the air for a given amount of time. But gravity is only acting in the ________________ direction. This means that the horizontal component of any velocity is always going to remain constant (if we ignore wind resistance)

Projectile Motion - MR. GLOVER

Download PDF Report

Upload
others
View
1
Download
0

Embed Size (px)

Citation preview

Physics11

ProjectileMotionLearningTargets:

Ican:ü Calculatethehorizontalandverticalcomponentofavelocityvectorü Solveproblemsinvolvingprojectilesatanangle

Sofar,wehaveworkedwithkinematicproblemsin_____dimension.Butwhathappensifavelocityisatanangle?Example:Alyssaisskateboardingataconstantvelocityof10!" 14°EofN.FindhervelocityinboththeNorthandEastdirection.Sincewecanusetrigonometrytosplitcomponentsofavectorup,wecanusethekinematicequationstosolveproblemsinvolvingaprojectile.Weknowthatgravity_______________anobjectataconstantrateof___________,soaprojectilewillonlystayintheairforagivenamountoftime.Butgravityisonlyactinginthe________________direction.Thismeansthatthehorizontalcomponentofanyvelocityisalwaysgoingtoremainconstant(ifweignorewindresistance)

!"#$%&$'(('

34.56)%2*C'&*0'-0*4.++%2:'*-'NO>5P"'30%4.$'/77'*'QND5'"%:"'&+%77'

*M! R/='+/2:'3/.$'%-'-*>.'-/'"%-'-".':0/,23B'9M! R/='7*0'70/5'-".'9*$.'/7'-".'&+%77'3/.$'%-'+*23B'&M! J"*-'%$'-".'4.0-%&*+'4.+/&%-#'=".2'%-'"%-$'-".':0/,23B'3M! J"*-'%$'-".'&*0$'4.+/&%-#'=".2'%-'"%-$'-".':0/,23B'

'******************

******************

Physics11

Example:Ashtonthrowsarockwithavelocityof15!" atanangleof40°fromthehorizontal.a)Howlongwilltherockstayintheairb)Howfarwilltherocktravelinthehorizontaldirectionbeforeithitsthegroundandstops?

Physics11

OnyourOwn:At-shirtcannonataSum-41concertfirest-shirtsatavelocityof15!" .Ifthecannonispointedatanangleof10°fromthehorizontal,howfarwilltheteeshirttravelbeforeithitstheground?

Assignment:ProjectileMotionWorksheet