Question

Rahul sits in a chair reading a book. Which force is equal to the force Rahul exerts on Earth?

Rahul’s weight
Rahul's mass
the sum of the weights of Rahul and the book
the sum of the weights of the chair, Rahul, and the book

Answers

GPT-4o mini
The correct answer is **Rahul’s weight**.

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. When Rahul exerts a force on the Earth (due to his weight), the Earth exerts an equal and opposite force back on him. Rahul's weight is the gravitational force exerted on him by the Earth, which is equal to the force he exerts on the Earth.