For each of the following interactions, identify action and reaction forces. (a) A hammer hits a nail. (b) Earth gravity pulls down on a book. (c) A helicopter blade pushes air downward.
For following interaction the action and reaction forces in this experiments are (a).Action force:The force applied by the hammer on Nail. Reaction force:the hammer and nail are equal in magnitude but they don't have equal mass.this causes difference in acceleration a/c to newton’s second law so here reaction force is the nail applies opposite force on hammer. (b).Action force:gravitational force pull book down. Reaction force:this is because the force book is pulling on table the same amount of force that Is acting on book to pull back it.here we know that the forces are equal and opposite in nature. (c).Action force:Blade pushes air down. Reaction force:The helicopter gets the lifting force from the air being forced downward due to propeller and air pushes back the force that required lifted helicopter from the ground.