please help answer QUESTION 7An object is thrown horizontally from the top of a 40-m building and lands 30 m from the base of the building.Ignore air resistance.What must have been the initial horizontal component of the velocity?Input your answer in m/s using 3 significant figures. (g = -9.80 m/s²)QUESTION 8An object is thrown horizontally from the top of a 23-m building and lands 86 m from the base of the building.Ignore air resistance.What is the vertical component of the velocity just before the object hits the ground?Input your answer in m/s using 3 significant figures. (g = -9.80 m/s²)

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An object is thrown horizontally from the top of a 40-m building and lands 30 m from the base of the building. Ignore air resistance. What must have been the initial horizontal component of the velocity? Input your answer in m/s using 3 significant figures. (g = -9.80 m/s²)

An object is thrown horizontally from the top of a 40-m building and lands 30 m from the base of the building. Ignore air resistance. What must have been the initial horizontal component of the velocity? Input your answer in m/s using 3 significant figures. (g = -9.80 m/s²)

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter3: Vectors

Section: Chapter Questions

Problem 42PQ: The same vectors that are shown in Figure P3.6 are shown in Figure P3.42. The magnitudes are F1 =...

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