All questions
AP Physics C: Mechanics
2.6 Gravitational Force
2.5 Newton’s Second Law
2.2 Forces and Free-Body Diagrams
IntermediateMCQMathematicalConceptual17.4k
A quantitative plot of normal force versus time. The horizontal axis is labeled t (s) with major tick marks at 0, 2, 4, 6, 8, 10, 12, and 14. The vertical axis is labeled F_N (N) with major tick marks at 0, 100, 200, 300, 400, 500, 600, and 700. A grid of light gray lines aligns with every major tick mark. A single solid black curve shows five horizontal intervals connected by vertical dashed segments: from t = 0 to 2 s at F_N = 500 N; a vertical dashed line rises at t = 2 s to 600 N; from t = 2 to 6 s at F_N = 600 N; a vertical dashed line drops at t = 6 s to 500 N; from t = 6 to 10 s at F_N = 500 N; a vertical dashed line drops at t = 10 s to 300 N; from t = 10 to 12 s at F_N = 300 N; a vertical dashed line rises at t = 12 s to 500 N; from t = 12 to 14 s at F_N = 500 N. No other labels, lines, text, or axes appear.
Normal force versus time for an elevator occupant.
A student stands on a force platform inside an elevator cab that is initially at rest at ground level. The elevator ascends vertically and comes to rest at an upper floor. The platform measures the normal force \(F_N\) exerted on the student as a function of time \(t\), as shown in the graph. Taking the acceleration due to gravity to be \(g = 10 \text{ m/s}^2\), which of the following statements correctly describes the motion or acceleration of the student?

Log In to Continue

Accounts are free! Log in to try this question, see explanations, save progress, and more!

Similar Questions

Tools for a 5

The Quiz Lab library of AP Physics quizzes AP aligned mock tests to help you get a 5. With grading, adaptive explanations, and more. Find a Quiz Find, solve, and grade every AP FRQ ever. Find an FRQ Stuck on AP Physics C: Mechanics? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Find a Tutor Learn AP Physics from scratch, quickly. This is the only course you'll need for the year. A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee. Explore the Course