I think its d because lifting it would make the chemical swish around and that will make it so you cant get the right measurement. hope this helps :)
The astronaut should shoot the aerosol spray in the opposite direction of where the astronaut is going to return back to the spaceship. This is in accordance to Newton’s Thrid Law, every action has an equal and opposite reaction.
Hope this helps you out!
B. Kinetic
Kinetic energy depends on motion and mass
Ranboo oobnar have a good day
1.) Law of Induction.
2.) Increase Winding Count