8) The minimum takeoff speed for a certain airplane is 75 m/s. What minimum acceleration is required if the plane must leave a runway of length 1050 m? Assume the plane starts from rest at one end of the runway. A. 1.5 m/s B. 3.0 m/ s² C. 4.5 m/ s D. 6.0 m/ s 27 m/ s E. 9 A ball is thrown verticalv upward from the surface of the earth. Consıder the following quantities: (1) the speed of the ball; (2) the velocity of the ball; 3) the acceleration of the ball. Which of these is (are) zero when the ball has reached the maximum height? A 1 and 2 only B. 1 and 3 only C. l only D. 2 only

8) The minimum takeoff speed for a certain airplane is 75 m/s. What minimum acceleration is required if the plane must leave a runway of length 1050 m? Assume the plane starts from rest at one end of the runway. A. 1.5 m/s B. 3.0 m/ s² C. 4.5 m/ s D. 6.0 m/ s 27 m/ s E. 9 A ball is thrown verticalv upward from the surface of the earth. Consıder the following quantities: (1) the speed of the ball; (2) the velocity of the ball; 3) the acceleration of the ball. Which of these is (are) zero when the ball has reached the maximum height? A 1 and 2 only B. 1 and 3 only C. l only D. 2 only

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College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A spring gun that is mounted at the edge of a 2.0-m-high table launches a steel ball at an angle of 230 above the horizontal with an initial speed of 7.0 m/s. What is the total time of flight of the steel ball? (Assume that g = 9.81 m/s2.) a. 0.80 s b. 0.60 s c. 0.40 s d. 1.0 s e. 1.2 s
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4) I use a pneumatic gun to launch a ball into the air from the roof of a building 30 m high at a velocity of 15 m/s. The ball just misses the edge of the building on its downward path. a. How long does it take for the ball to reach its maximum height? b. How high above the ground is the ball at its maximum height? c. Calculate the terminal velocity of the ball. d. Calculate the total time the ball is in the air Plot the value of position and velocity for the ball as functions of time. e.
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Q.18
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