Because it stretches and makes your muscles ready for the activity
Use round wheels to roll the heap, help the weight by evacuating appended or contained protests, or place a smoother surface betwen the question and the floor. Water or different liquids can be utilized to diminish the protection, yet just on the off chance that they stay between the question and the floor.
Answer:
it's C (this is not a guess)
That's called an "acceleration" or "slowing down".
