Standing up for massive amounts of time(fact)
Answer: In linear motion, the directions of all the vectors describing the system are equal and constant which means the objects move along the same axis and do not change direction.
Explanation: hope this helped
I think C but I might be wrong
Answer:
https://quizlet.com/190967220/physical-fitness-attitudes-quiz-flash-cards/
please look through the flashcards as you will find the answer's in them