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12–89. The girl at A can throw a ball at va = 10 m/s. Calculate the maximum possible range R = Rmax and the associated angle 0 at which it should be thrown. Assume the ball is caught at B at the same elevation from which it is %3D thrown. 12–90. Show that the girl at A can throw the ball to the boy at B by launching it at equal angles measured up or down from a 45° inclination. If v4 = 10 m/s, determine the range R if this value is 15°, i.e., 01 = 45° – 15° = 30° and 62 = 45° + 15° = 60°. Assume the ball is caught at the same elevation from which it is thrown. VA = 10 m/s B] R-

12–89. The girl at A can throw a ball at va = 10 m/s. Calculate the maximum possible range R = Rmax and the associated angle 0 at which it should be thrown. Assume the ball is caught at B at the same elevation from which it is %3D thrown. 12–90. Show that the girl at A can throw the ball to the boy at B by launching it at equal angles measured up or down from a 45° inclination. If v4 = 10 m/s, determine the range R if this value is 15°, i.e., 01 = 45° – 15° = 30° and 62 = 45° + 15° = 60°. Assume the ball is caught at the same elevation from which it is thrown. VA = 10 m/s B] R-

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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12–89. The girl at A can throw a ball at va = 10 m/s. Calculate the maximum possible range R = Rmax and the associated angle 0 at which it should be thrown. Assume the ball is caught at B at the same elevation from which it is %3D thrown. 12–90. Show that the girl at A can throw the ball to the boy at B by launching it at equal angles measured up or down from a 45° inclination. If v4 = 10 m/s, determine the range R if this value is 15°, i.e., 01 = 45° – 15° = 30° and 62 = 45° + 15° = 60°. Assume the ball is caught at the same elevation from which it is thrown. VA = 10 m/s B] R-
Transcribed Image Text:12–89. The girl at A can throw a ball at va = 10 m/s. Calculate the maximum possible range R = Rmax and the associated angle 0 at which it should be thrown. Assume the ball is caught at B at the same elevation from which it is %3D thrown. 12–90. Show that the girl at A can throw the ball to the boy at B by launching it at equal angles measured up or down from a 45° inclination. If v4 = 10 m/s, determine the range R if this value is 15°, i.e., 01 = 45° – 15° = 30° and 62 = 45° + 15° = 60°. Assume the ball is caught at the same elevation from which it is thrown. VA = 10 m/s B] R-
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