...........is The length of the shortest straight line, ............ is The actual length of path that a moving object covers from a starting point to the ending point, ............. is the distance an object travels in a certain amount of time, factors affect on speed ............ and ........, when an object travels a greater distance in the same amount of time , speed of an object......., when more time is needed to travel the same distance , speed of an object............, units of speed ............. or ..........., An object travels for 9 seconds and covers a distance of 126m. What is its speed?

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