The rate of change is 6 secs/foot in terms of seconds per foot.
Answer
Because velocity and speed differ each other by direction, in a 100 m sprint race the person moves in a straight path without changing its direction where as in a 400 m race. The person moves in a lap around the race track and the direction changes as he turns according to the race track.
Step-by-step explanation:
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I think it is BD but I’m not 100% sure
