webassign.net ESPN Bing Yahoo Cloud Facebook Titter Whipedia Nw 10 17. 2P017 WA

Question

webassign.net ESPN Bing Yahoo Cloud Facebook Titter Whipedia Nw 10 17. 2P017 WA My Ask Your Suppose you are looking down from a helicopter at three cars traveling in the same d by dots on the diagram. The positive direction is to the right irection along a freeway. The positions of the three cars every 2 seconds are representesd Car A Car B Car c (a) Which car is traveling at a constant speed? Car 8 Car C All cars are travellng at a constant speed None of the cars are traveling at a constant speed. (b) During which time interval do Car A and Car 8 have the same average speed? t1tot2 tz to ty

Explanation / Answer

From the diagram ,

Question a) answer) option A) car A

Reason : Car A is traveling at constant speed since it is covering 2 units for every time interval , whereas car B and car C are not traveling at constant speed because they are traveling different distances at different time intervals

Question b) answer ) option b ) t2 to t3

Reason : In the interval t2 to t3 , car A and car B have same average speed as they traveled 2 units in that time period

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