hysics 2018 Placement Test An airplane takes off from the ground at a constant s

Question

hysics 2018 Placement Test An airplane takes off from the ground at a constant speed of v 50 m/s, and at a constant angle 8 with respect to the horizontal. After t = 20 seconds, the plane is h = 300 end meters off the ground. What is (indegree)? 1.00 Answer: l 0 The police rounded up 35 people suspected of robbing a bank. Each person was assigned a number from 1 to 35. After a short investigation, three of them were arrested, numbers #13, #16 and #31. They made the following statements under intensive questioning: #13: I minnocent. #16: I'm innocent bank? ed #31:#13 is guilty. Ifonly one of these statements is true, who robbed the f10 Note: Do not use the symbol # in your answer. Your answer should be just a number. Answer Finish attempt... s page You are logged in as Abhinav Koorapati (Log out)

Explanation / Answer

here,

initial speed , u = 50 m/s

let the angle be theta

after t = 20 s

height , h = u * sin(theta) * t

300 = 50 * sin(theta) * 20

theta = 17.4 degree

the amgle theta is 17.4 degree

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