Solution Found!
Answer: Earth pulls down on you with a gravitational force
Chapter 5, Problem 10RQ(choose chapter or problem)
Problem 10RQ
Earth pulls down on you with a gravitational force that you call your weight. Do you pull up on Earth with the same amount of force?
Questions & Answers
QUESTION:
Problem 10RQ
Earth pulls down on you with a gravitational force that you call your weight. Do you pull up on Earth with the same amount of force?
ANSWER:
Solution
Step 1 of 2
Yes,
According to newton’s third law, for every action there is a reaction force which is equal in magnitude but opposite in direction.
Here when we stand on the earth surface; since both the earth has mass M and a person has mass m. As they have masses,they are acted by an attraction force between them called gravitational force; which is directly proportional to the product of masses and inversely proportional to square of the distance(r).
That is
Where G is universal gravitational constant.
Where is the force of earth on person called weight, is the force of person on earth and is gravitational force.