To say there is no such thing as only one force means
A) there must also be an oppositely directed force.
B) other forces, perhaps not evident, are there.
C) gibberish.
D) none of the above.
Answer
To say there is no such thing as only one force means:
Option (A) there must also be an oppositely directed force
Basically reaction force is a force which is applied on objects
and seems like there is no force but it exists.
