Which of these explanations is describing the law of inertia?" The seat belt must apply more force to stop a child with more mass than a child with
less mass.
If the car stops suddenly, the seat belt and car seat help overcome the inertia of the
child so the child doesn't keep moving and get injured.
When the seat belt pushes on the child, the child pushes back on the seat belt
None of these are examples of the law of inertia

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?