A playground is on the flat roof of a city school, h, 6.30 m above the street below (see figure). The vertical wall of the building is h= 7.50 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 e- 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) Find the speed at which the ball was launched. m/s (b) Find the vertical distance by which the ball clears the wall. m. (c) Find the horizontal distance from the wall to the point on the roof where the ball lands.

A playground is on the flat roof of a city school, h, 6.30 m above the street below (see figure). The vertical wall of the building is h= 7.50 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 e- 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) Find the speed at which the ball was launched. m/s (b) Find the vertical distance by which the ball clears the wall. m. (c) Find the horizontal distance from the wall to the point on the roof where the ball lands.

Name: A playground is on the flat roof of a city school, h, - 6.30 m above
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Description: A playground is on the flat roof of a city school, h, - 6.30 m above the street below (see figure). The vertical wall of thebuilding is h= 7.50 m high, to form a 1.2-m-high railing around the playground. A ball has fallen to the street below, and ap

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter6: Energy Of A System

Section: Chapter Questions

Problem 13P

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