Unit 2 Section 1 Notes Motion and Force Introduction to Kinematics.
Notes - Unit 2 - 2D Kinematics
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Unit 2: Kinematics in 2D 4 - Projectile Motion Types 1 and 2 Remember that the x and y-components are _______________ and therefore totally _______________. X-components There is no ________________ working on the projectile in the X and the acceleration is always _____________. Therefore the only equation we can ever use is: The only value that can ever be used on both sides is ____________ because it is a ______________ . Y-components In this case there is always a constant acceleration of _______________________. Because of this we need to use the _______________________. Problem Type 1: A student sits on the roof of their house which is 12 m high. She can launch water-balloons from a slingshot at 14.0 m/s. If she fires a water-balloon directly horizontally: a. How long will it be airborne? This depends on: b. How far forward will it travel? This depends on:
Transcript of Notes - Unit 2 - 2D Kinematics
Unit2:Kinematicsin2D
4-ProjectileMotionTypes1and2
Rememberthatthexandy-componentsare_______________andthereforetotally_______________.
X-components
Thereisno________________workingonthe
projectileintheXandtheaccelerationisalways
_____________.Thereforetheonlyequationwecan
everuseis:
Theonlyvaluethatcaneverbeusedonbothsidesis____________becauseitisa______________.
Y-components
Inthiscasethereisalwaysaconstantaccelerationof
_______________________.Becauseofthiswe
needtousethe_______________________.
ProblemType1:
Astudentsitsontheroofoftheirhousewhichis12mhigh.Shecanlaunchwater-balloonsfromaslingshotat14.0
m/s.Ifshefiresawater-balloondirectlyhorizontally:
a.Howlongwillitbeairborne?
Thisdependson:
b.Howfarforwardwillittravel?
Thisdependson:
ProblemType2:TheDukesofHazzardaretravelingat85km/hwhentheyhitajumpthatmakesanangleof25o
abovethehorizontal.
a.Howlongaretheyairborne?
b.Howfarforwarddotheyflythroughtheair?
c.Whatistheirmaximumheight?
Example:ACutlassSupremedrivesstraightoutofaparkinggarageat8.0m/sandhitsthewater3.4slater.
a.Howfardidthecarfall?
b.Whatwashistotalimpactvelocity?(magnitudeanddirection)
Example:Aquarterbacklaunchesaballtohiswidereceiverbythrowingitat12.0m/sat35oabovehorizontal.
a.Howfardownfieldisthereceiver?
b.Howhighdoestheballgo?
c.Atwhatotheranglecouldthequarterbackhavethrowntheballandreachedthesamedisplacement?
ProblemType3:
Ex:Acannonisperchedona48mhighcliff.Itaims30oabovethehorizontalandfiresashellat52m/s.Find:
a)Howlongittakesforthesheeltohittheground.
b)Thedistanceitlandsfromthebaseofthecliff.
Ex:ABMXerleavesaramptravelingat65km/hatatrajectoryof40
oabovethehorizontal.Afterreachinghismaxheight
hestrikesthetopofabuilding5.8mabovetheground.
a)Whatisthehorizontaldistancefromtheramptothebuilding?
b)Whatishisspeedwhenhehitsthebuilding?
