Answered: A playground is on the flat roof of a…

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 playground is on the flat roof of a city school, h_b = 6.70 m above the street below (see figure). The vertical wall of the building is h = 7.90 m high, to form a 1.2-m-high railing around the playground. A ball has fallen to the street below, and a passerby returns it by launching it at an angle of ? = 53.0° above the horizontal at a point d = 24.0 m from the base of the building wall. The ball takes 2.20 s to reach a point vertically above the wall.

Question: (a) Find the speed at which the ball was launched.

A playground is on the flat roof of a city school, h, = 6.70 m above the street below (see figure). The vertical wall of the building is h = 7.90 m high, to form a 1.2-m-high railing around the playground. A ball has
fallen to the street below, and a passerby returns it by launching it at an angle of 0 = 53.0° above the horizontal at a point d = 24.0 m from the base of the building wall. The ball takes 2.20 s to reach a point
vertically above the wall.
A man onhe ground kicking a ball to children on a flat rooftois
epveen the man and the building is labeled d. The heighttothe le
building is labeled h. The motion of the ball is depiced as a parabota
originatng from the man on the grond and ending at the rooftod. The vector of
dis
the initlal motion of the ball makes an angle e with the horizontal
(a) Find the speed at which the ball was launched.
6.3
Your response differs from the correct answer by more than 10%. Double check your calculations. m/s

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The speed at which the ball was launched =?

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