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

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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

the car moving with constant speed covers equal distances in equal internvals of time

so from the figure it was clear that car A travels with constant speed

b) from t2 to t3 both cars A and B travels same distance ,hence the answer is t2 to t3

C) the car which travels largest distance in t1 to t2,has largest speed so the answer is car C

D) car B travels largest speed in interval from t4 to t5 then car B is the answer

e) during the interval t1 to t4,both car A and car B has travelled same distance so answer is t4

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