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Example 2 A student throws a book horizontally out a dorm window with a speed of 12.5 m/s. The book lands on the ground 31.8 m from the base of the building. How high is the window above the ground?

Example 2 A student throws a book horizontally out a dorm window with a speed of 12.5 m/s. The book lands on the ground 31.8 m from the base of the building. How high is the window above the ground?

College Physics
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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Solve example 2 and 3. Write the given, formula and the calculations
Example 1 A ball rolls off a 1.42-m high table with a speed of 2.63 m/s. How far from the base of the table will it land? X dx = ??? Vox 2.63 m/s ax = 0 m/s² Y dy = -1.42 m Voy = 0 m/s ay = -9.8 m/s² dvt-4.9.1² -1.420-4.9.1² (-1.42/-4.9) = 1² t = √(-1.42/-4.9) = 0.5383 ... s Vox = 2.63 m/s d₂ = ??? d₁= Voxt d = (2.63) (0.5383 ...) d = 1.42 m (1.41579... m) Slide 6 Strategy Read/Diagram ID Knowns ID Unknown Pick Equation Substitute/Solve Example 2 A student throws a book horizontally out a dorm window with a speed of 12.5 m/s. The book lands on the ground 31.8 m from the base of the building. How high is the window above the ground? Example 3 A stone is thrown from the top of a 52.5-m high vertical cliff and lands in the water below at a location 43.8 m from the bottom of the cliff. Determine the velocity with which the stone is thrown.
Transcribed Image Text:Example 1 A ball rolls off a 1.42-m high table with a speed of 2.63 m/s. How far from the base of the table will it land? X dx = ??? Vox 2.63 m/s ax = 0 m/s² Y dy = -1.42 m Voy = 0 m/s ay = -9.8 m/s² dvt-4.9.1² -1.420-4.9.1² (-1.42/-4.9) = 1² t = √(-1.42/-4.9) = 0.5383 ... s Vox = 2.63 m/s d₂ = ??? d₁= Voxt d = (2.63) (0.5383 ...) d = 1.42 m (1.41579... m) Slide 6 Strategy Read/Diagram ID Knowns ID Unknown Pick Equation Substitute/Solve Example 2 A student throws a book horizontally out a dorm window with a speed of 12.5 m/s. The book lands on the ground 31.8 m from the base of the building. How high is the window above the ground? Example 3 A stone is thrown from the top of a 52.5-m high vertical cliff and lands in the water below at a location 43.8 m from the bottom of the cliff. Determine the velocity with which the stone is thrown.
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