Get started!
Stage 1
Answer 3 questions correctly in a row.
Karen is sitting on a roller coaster cart as it reaches the bottom of a big loop. Earth's gravity is pulling down on Karen with a force of . The seat of the cart is pushing up on Karen with a force of .
600
N
1,200
N
Assume all other forces on Karen are balanced. Which statement describes the forces on Karen?
The forces are balanced, so there is no net force on Karen.
The forces are unbalanced, so there is a net force on Karen.
ref_doc_title.
Jumping to stage 1 of 1
Excellent!
Now entering the Challenge Zone—are you ready?
