As a car heads down a highway traveling at a speed v away from a ground observer, which of the following statements are true about the measured speed of the light beam from the cars headlights? More than one statement may be correct. (a) The ground observer measures the light speed to be c 1 v. (b) The driver measures the light speed to be c. (c) The ground observer measures the light speed to be c. (d) The driver measures the light speed to be c 2 v. (e) The ground observer measures the light speed to be c 2 v.

Chapter2:OneDimensionalKinematics Kinematic–thedescriptionofmotion,withoutconcernforthecauseof themotion Onedimensionalmotionismotionalongastraightline. Inordertodefinewheresomethingisyoucancheckthepositionofan objectagainsttherulerandnotethereading.Thezerooftheruleristhe pointoforigin.Wehavetherighttochoosewhich directionispositiveand whichdirectionisnegativerelativetotheorigin.Thisiscallorientation.The combinationoforientationandoriginiscalledcoordinatesystem. Asanobjectchangespositionwesaythatitisundergoingtranslation.The amountitmovesisthedisplacement(D).displacementinvolvesdistance anddirection.Inonedimensionthedirectionispositiveornegative. *delta(Δ)ind