Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both. If you're not changing your speed and you're not changing your direction, then you simply cannot be accelerating—no matter how fast you're going.
Each parent contribute 50 percent. A person have 46 genes and 23 comes from the mother and 23 comes from the father
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Double displacement...I think
