2د الحركة في بعد واحد.. . .Question #2A race car, traveling at constant speed, makes one lap arounda circular track of radius rin a time t. The circumference of acircle is given by C= 2nr. Which one of the followingstatements concerning this car is true?a) The displacement of the car does not change with time.b) The instantaneous velocity of the car is constant.c) The average speed of the car is the same over any timeinterval.d) The average velocity of the car is the same over any timeinterval.e) The average speed of the car over any time interval is equalto the magnitude of the average velocity over the same timeinterval.Question #3A turtle and a rabbit are to have a race. The turtle's/ 10average speed is 0.9 m/s. The rabbit's average speed is9 m/s. The distance from the starting line to the finish lineis 1500 m. The rabbit decides to let the turtle run beforehe starts running to give the turtle a head start. What,approximately, is the maximum time the rabbit can waitbefore starting to run and still win the race?a) 15 minutesb) 18 minutesc) 20 minutesd) 22 minutese) 25 minutesQuestion #4A turtle, moving at a constant velocity of 0.9 m/s duesouth, is in a race with a rabbit, who runs at a moderatespeed of 9 m/s. When the turtle is 45 m from the finishline, the rabbit begins taunting the turtle by running fromthe turtle to the finish line (without crossing it) and back tothe turtle. The rabbit continues going back and forthbetween the turtle and the finish line until the turtlecrosses the finish line. About how many meters does therabbit travel as the turtle travels that last 45 m? Assumethe rabbit always runs at 9 m/s and doesn't lose any time

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Question #2 A race car, traveling at constant speed, makes one lap around a circular track of radius rin a time t. The circumference of a circle is given by C= 2nr. Which one of the following statements concerning this car is true? a) The displacement of the car does not change with time. b) The instantaneous velocity of the car is constant. c) The average speed of the car is the same over any time interval. d) The average velocity of the car is the same over any time interval. e) The average speed of the car over any time interval is equal to the magnitude of the average velocity over the same time interval.

Question #2 A race car, traveling at constant speed, makes one lap around a circular track of radius rin a time t. The circumference of a circle is given by C= 2nr. Which one of the following statements concerning this car is true? a) The displacement of the car does not change with time. b) The instantaneous velocity of the car is constant. c) The average speed of the car is the same over any time interval. d) The average velocity of the car is the same over any time interval. e) The average speed of the car over any time interval is equal to the magnitude of the average velocity over the same time interval.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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