Why do we tie our seat belts in moving car or landing/take off the plane?

Monica had a bad experience during her first flight. Her friend assisted and helped her during the landing of plane. He told her to fasten the seat belt and involved her in gossip. Monica faced less problems while landing of the plane.
Answer the following questions regarding above passage.
Why do we tie our seat belts in moving car or landing/take off the plane?
What is free fall?
What value of Monica’s friends is seen in this act?

  1. We tie our seat belts to remains intact on the seat, so that our body does not fall forward.
  2. When an object falls vertically downward direction under the influence of gravity, then we say that the object is in free fall.
  3. Monica’s friend is sympathetic, responsible and caring friend.