(3) Let us first determine the time at which the football arrives at the goal post. This can be interpreted as the time at which the football has covered the horizontal distance from the kick point (defined as x, = 0) to the goal post. Consider the correct choice in question (1). Based on that model, choose the response below that gives the correct time at which the football is at the goal post in terms of the position x, of the goal post, the initial velocity v, and the launch angle 0. O t- Ot= V, sin e cos e O t= O t= V, cos e none of the above

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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(a) By how much does the ball clear or fall short of clearing the crossbar?
(3) Let us first determine the time at which the football arrives at the goal post. This can be interpreted as the
time at which the football has covered the horizontal distance from the kick point (defined as x, = 0) to the
goal post. Consider the correct choice in question (1). Based on that model, choose the response below that
gives the correct time at which the football is at the goal post in terms of the position x, of the goal post, the
initial velocity v, and the launch angle 0.
O t= i
O t=
sin 0
O t= cos e
O t=
V, cos e
O none of the above
(4) Let's now find the vertical position of the football when it arrives at the goal post. Based on the correct
choice in question (2), what is the most useful choice of equation from that model in finding the vertical
position of the football when it arrives at the goal post?
O vyr = Vyi - gt
O Y, = Y,+(Vyi + Vyplt
O y, = Y, + Vy£ -gr?
2
= V
yf
2
- 29(Y; - Y)
O none of the above
Transcribed Image Text:(a) By how much does the ball clear or fall short of clearing the crossbar? (3) Let us first determine the time at which the football arrives at the goal post. This can be interpreted as the time at which the football has covered the horizontal distance from the kick point (defined as x, = 0) to the goal post. Consider the correct choice in question (1). Based on that model, choose the response below that gives the correct time at which the football is at the goal post in terms of the position x, of the goal post, the initial velocity v, and the launch angle 0. O t= i O t= sin 0 O t= cos e O t= V, cos e O none of the above (4) Let's now find the vertical position of the football when it arrives at the goal post. Based on the correct choice in question (2), what is the most useful choice of equation from that model in finding the vertical position of the football when it arrives at the goal post? O vyr = Vyi - gt O Y, = Y,+(Vyi + Vyplt O y, = Y, + Vy£ -gr? 2 = V yf 2 - 29(Y; - Y) O none of the above
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