Name: ______Date: ______Period: ______

Honors Physics

Chapter 2, Assignment A

1. The fastest rotary blade vehicle is a helicopter made by Westland and called the Lynx. It can travel 3.33 km in the forward direction in just 30.0 s. What is the average velocity of this helicopter? Express your answer in both m/s and km/hr.

2. The military has a plane that travels faster than any other plane in the world. The SR is a spy plane built in 1964 and was clocked traveling15.0kmwestin15.3s,whatisitsaveragevelocityinkilometersperhour?

3. Atitsmaximumspeed,atypicalslugmovesabout4.0min5.0min.Whatistheaveragespeedofthesnail?

4. Thearcticternmigratesfartherthananyotherbird.Eachyear,theArcticterntravels3.20 x 104kmbetweentheArcticOceanandthecontinentofAntarctica.Mostofthemigrationtakesplacewithintwofour-month periods eachyear.Ifaterntravels3.20x104kmsouthin122days,whatisitsaveragevelocityinkilometersperday?

5. Supposetheterntravels1.70x104kmsouth,onlytoencounterbadweather.Insteadoftryingtoflyaroundthestorm,theternturnsaroundandtravels6.00x102northtowaitoutthestorm.Itthenturnsaroundagainimmediatelyandflies1.44x104kmsouthtoAntarctica.Whatarethe tern’saverage speed and velocity ifitmakes thistripin 122 days?

6. John drives20.0kmtotheeastwhenherealizeshelefthiswalletathome.Hedrives20.0kmwesttohishouse,takes5.0mintofindhiswallet,and thenleavesagain.John is40.0kmeastofhishouseexactly60.0minafterheleftthefirsttime.

a. Whatishisaveragevelocity?

b. Whatishisaveragespeed?

7. Emilytakesatrip,drivingwithaconstantvelocityof89.5km/htothenorthexceptfora22.0minreststop.IfEmily’saveragevelocityis77.8km/htothenorth,howlongdoesthetriptake?

8. Lauraisskydivingwhenatacertainaltitudesheopensherparachuteanddriftstowardthegroundwithaconstantvelocityof6.50m/s,straightdown.WhatisLaura’sdisplacementifittakesher34.0storeachtheground?

9. Atortoisecanrunwithaspeedof10.0cm/s,andaharecanrunexactly20timesasfast.Inarace,theybothstartatthesametime,buttheharestopstorestfor2.00min.Thetortoisewinsby20.0cm.Howlongdoestheracetake?

10. Whatisthelengthoftheraceinproblem9?