Please help me solve part C

Problem 5.23 Part B (Figure 1) shows the velocity graph of a 71 kg passenger in an elevator. What is the passenger's apparent weight at t = 5.0 s? Express your answer with the appropriate units. Wapp = 700 N Submit Previous Answers V Correct Correct answer is shown. Your answer 698.51 N was either rounded differently part Figure Part C 1 of 1 > What is the passenger's apparent weight at t = 9.0 s? Express your answer to two significant figures and include the appropriate units. v (m/s) 8 HA 4 Wapp Value Units 1 (s) 2 4 6 8 10 Submit Request Answer Provide Feedback