4. A target lies flat on the ground 3 m from the side of a building that is 10 m tall, as shown above. A student rolls a ball off the horizontal roof of the building in the direction of the target. Air resistance is negligible. What is the horizontal speed with which the ball must leave the roof if it is to strike the target? 18 m 4.0 m

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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4.
A target lies flat on the ground 3 m from the side of a building that is 10 m tall, as
shown above. A student rolls a ball off the horizontal roof of the building in the direction
of the target. Air resistance is negligible. What is the horizontal speed with which the ball
must leave the roof if it is to strike the target?
18 m
4.0 m
Transcribed Image Text:4. A target lies flat on the ground 3 m from the side of a building that is 10 m tall, as shown above. A student rolls a ball off the horizontal roof of the building in the direction of the target. Air resistance is negligible. What is the horizontal speed with which the ball must leave the roof if it is to strike the target? 18 m 4.0 m
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