Asked by AYESHA

racing car accelerates uniformly. changes with following average speeds 20m/s for 2sec ;40m/sec for 2s and 60m/s for 6sec . what is overall average speed of car

Answers

Answered by Damon
calculate distance
20*2 + 40*2 + 60*6 =
calculate time
2+2+6

av speed = distance/time
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