When you roll down the first big hill on a roller coaster, you feel particularly weightless because
A. your acceleration is downward.
B. your velocity is downward.
C. your mass is downward.
D. your momentum is downward.
Answer:A
When you roll down the first big hill on a roller coaster, you feel particularly weightless because
A. your acceleration is downward. B. your velocity is downward. C. your mass is downward. D. your momentum is downward.