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Chrome File Edit View History Bookmarks People Window Help R, U.S 30% D Sat 2:29 PM a E WA Ch 2 sections 1-6 C www.webassign.net 11&dep; 13380468 /web/Student/Assignment-Responses/submit?pos Assignment submission For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answe Assignment Scoring Your last submission is used for your score. 7. C+ -l 4 points OBInPhys7 2.P.010 My Notes The Kingda Ka roller coaster in New Jersey is the world's tallest ride of its kind As the passenger cars are launched from est at the start, they are accelerated uniformly to a n just 3.5 s. Assume the cars are launched in the positive horizontal direction. Ind with the sign of your answer where speed of 57 m/s (128 mph the direction appropriate.) (a) what is the acceleration experienced by passengers on this ride in m/s2? m/s What is the acceleration experienced by passengers on this ride in g's? (b) If a certain passenger has a mass of 69 kg, what is the force that acts on him during the launch phase of this ride in newtons? What is the force that acts on him during the launch phase of this ride in pounds. Need Help? Read it Submit Answer Practice Another Version View Previous Question Question 7 of 12 View Next Question

Explanation / Answer

a) Average Acceleration, a = change in velocity/time = 57/3.5 = 16.28 m/s2

Acceleration in g = 16.28*(1g/9.8) = 1.66 g

b) Force, F = ma = 69*16.28 = 1123.32 N

1N = 0.2248 lb

=> F = 252.53 lb

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