Review | Constants In U.S. football, after a touchdown the team has the opportunity to earn one more point by kicking the ball over the bar between the goal posts. The bar is 10.0 ft above the ground, and the ball is kicked from ground level, 36.0 ft horizontally from the bar (the figure (Figure 1)). Football regulations are stated in English units, but convert to Sl units for this problem. Part A There is a minimum angle above the ground such that if the ball is launched below this angle, it can never clear the bar, no matter how fast it is kicked. What is this angle? 1ν ΑΣφ Figure 1 of 1 Request Answer Submit Part B If the ball is kicked at 55° above the horizontal, what must its initial speed be if it to just clear the bar? Express your answer in m/s. 10.0 ft ΑΣφ -36.0 ft m/s In U.S. football, after a touchdown the team has the opportunity to earn one more point by kicking the ball over the bar between the goal posts. The bar is 10.0 ft above the ground, and the ball is kicked from ground level, 36.0 ft horizontally from the bar (the figure (Figure 1). Football regulations are stated in English units, but convert to Sl units for this problem. ΑΣΦΦ ? m/s vo Request Answer Submit Figure > Part C 1 of 1 If the ball is kicked at 55° above the horizontal, what must its initial speed be if it to just clear the bar? Express your answer in km/h η ΑΣφ ? km/h 10.0 ft - 36.0 ft Request Answer Submit Provide Feedback Next PPearson Win

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 19P
Question
Review | Constants
In U.S. football, after a touchdown the team has the
opportunity to earn one more point by kicking the ball
over the bar between the goal posts. The bar is 10.0 ft
above the ground, and the ball is kicked from ground
level, 36.0 ft horizontally from the bar (the figure (Figure
1)). Football regulations are stated in English units, but
convert to Sl units for this problem.
Part A
There is a minimum angle above the ground such that if the ball is launched below this angle, it can
never clear the bar, no matter how fast it is kicked. What is this angle?
1ν ΑΣφ
Figure
1 of 1
Request Answer
Submit
Part B
If the ball is kicked at 55° above the horizontal, what must its initial speed be if it to just clear the bar?
Express your answer in m/s.
10.0 ft
ΑΣφ
-36.0 ft
m/s
Transcribed Image Text:Review | Constants In U.S. football, after a touchdown the team has the opportunity to earn one more point by kicking the ball over the bar between the goal posts. The bar is 10.0 ft above the ground, and the ball is kicked from ground level, 36.0 ft horizontally from the bar (the figure (Figure 1)). Football regulations are stated in English units, but convert to Sl units for this problem. Part A There is a minimum angle above the ground such that if the ball is launched below this angle, it can never clear the bar, no matter how fast it is kicked. What is this angle? 1ν ΑΣφ Figure 1 of 1 Request Answer Submit Part B If the ball is kicked at 55° above the horizontal, what must its initial speed be if it to just clear the bar? Express your answer in m/s. 10.0 ft ΑΣφ -36.0 ft m/s
In U.S. football, after a touchdown the team has the
opportunity to earn one more point by kicking the ball
over the bar between the goal posts. The bar is 10.0 ft
above the ground, and the ball is kicked from ground
level, 36.0 ft horizontally from the bar (the figure (Figure
1). Football regulations are stated in English units, but
convert to Sl units for this problem.
ΑΣΦΦ
?
m/s
vo
Request Answer
Submit
Figure
>
Part C
1 of 1
If the ball is kicked at 55° above the horizontal, what must its initial speed be if it to just clear the bar?
Express your answer in km/h
η ΑΣφ
?
km/h
10.0 ft
- 36.0 ft
Request Answer
Submit
Provide Feedback
Next
PPearson
Win
Transcribed Image Text:In U.S. football, after a touchdown the team has the opportunity to earn one more point by kicking the ball over the bar between the goal posts. The bar is 10.0 ft above the ground, and the ball is kicked from ground level, 36.0 ft horizontally from the bar (the figure (Figure 1). Football regulations are stated in English units, but convert to Sl units for this problem. ΑΣΦΦ ? m/s vo Request Answer Submit Figure > Part C 1 of 1 If the ball is kicked at 55° above the horizontal, what must its initial speed be if it to just clear the bar? Express your answer in km/h η ΑΣφ ? km/h 10.0 ft - 36.0 ft Request Answer Submit Provide Feedback Next PPearson Win
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