QuestionQuestion

Transcribed TextTranscribed Text

Kicking a field goal y EXAMPLE 3.6 For a field goal attempt, a football is kicked from a point on the Uo = 20.0 m/s ground that is a horizontal distance S from the goalpost. For the 3.05 m attempt to be successful, the ball must clear the crossbar, 10 ft To 30.0° X (about 3.05 m) above the ground, as shown in Figure 3.18. The ball leaves the kicker's foot with an initial speed of o d 20.0 m/s at an angle of 30° above the horizontal. What is the dis- d2 tance d between kicker and goalpost if the ball barely clears the The ball can pass over the goalposts on the way up or crossbar? on the way down, so there are two possible values EXAMPLE 3.7 Robin Hood shoots a pear In a festival competition, the great archer Robin Hood is challenged to hit a falling pear with an arrow. At the sound of a horn, he is to shoot his arrow, and at the same instant the pear will be dropped from the top of a tall tower. As shown in Figure 3.19, Robin Hood aims directly at the initial position of the pear, seem- rivals ingly assume that this is a mistake, but to their shock, he hits the pear. Show that if the arrow is location aimed directly initial making no allowance for the fact that the pear is dropping as the arrow moves toward it. His at the initial position of the pear, it will always hit the pear, regardless of the pear's initial or speed (assuming that neither pear nor arrow hits the ground first). y Line of sight to pear Path of pear ? Notice tan00 = " I'm Does the arrow that hit the pear? Trajectory of arrow To x On S A FIGURE 3.19 Robin Hood's shot.

Solution PreviewSolution Preview

These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice. Unethical use is strictly forbidden.

    By purchasing this solution you'll be able to access the following files:
    Solution.pdf.

    $10.00
    for this solution

    PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

    Find A Tutor

    View available General Physics Tutors

    Get College Homework Help.

    Are you sure you don't want to upload any files?

    Fast tutor response requires as much info as possible.

    Decision:
    Upload a file
    Continue without uploading

    SUBMIT YOUR HOMEWORK
    We couldn't find that subject.
    Please select the best match from the list below.

    We'll send you an email right away. If it's not in your inbox, check your spam folder.

    • 1
    • 2
    • 3
    Live Chats