Context: Natalie is sitting on a roller coaster cart as it reaches the bottom of a big loop. Earth's gravity is pulling down on Natalie with a force of 600N. The seat of the cart is pushing up on Natalie with a force of 1,200N.
Assume all other forces on Natalie are balanced. Which statement describes the forces on Natalie?
A. The forces are balanced, so there is no net force on Natalie.
B. The forces are unbalanced, so there is a net force on Natalie.
From the given choices, select the correct answer and reply with the letter of the chosen option.
Answer: B