It is against the motion. That's why it's negative.
the answer is obvious.
the object taken here is a man whose name is Lionel messi.
from physics point of view we can't infer any idea about the object Lionel messi.
but if we forget physics for some time and go through the news paper and google we can find the brilliant answer about the question.
he is a man who is considered as the God father of football.
he plays for Argentina and scores the goal in a conservative way.
he is a non physicists but applies good physics while kicking the football and provides necessary momentum and direction to the football.
For playing football sounds very easy but there are so many laws related to physics .He has a mastery on it.
The base of ladder as origin should do good enough however you may need to consider different axes of rotation while analyzing torques.
The dipole moment of a molecule and its boiling point are directly varied. If the dipole moment is large, the attraction between the positive and negative charges of a molecule is strong thus, requiring stronger forces to break them. Hence, they will have higher boiling points.
The answer to this question is A - 25 N
