Physics

posted by .

3. It’s fourth down in the big football game, and the game is tied with 2 seconds to go! You are called on to win the game with the biggest field goal of your life, from 36 meters. The crowd holds its collective breath as the ball is spotted, and you kick it. It leaves your foot with a speed of 22 m/s at an angle of 52º above the ground. The crossbar on the goal post is 3.05 meters high.

A. How long does the ball take to reach the goal post? (5 points)

B. What is the ball’s speed when it reaches the goal post? (5 points)


C. By how much is the ball above or below the crossbar when it reaches the plane of the goal post? (5 points)

  • Physics -

    in the x-direction,

    vx = 22*cos52º = 13.5m/s
    it travels 36m in 36/13.54 = 2.66 seconds

    neglecting air resistance

    vy = 22*sin52º - 9.8t = 17.34 - 9.8*2.66 = -8.73
    vx is still 13.54

    use pythagorean theorem to add the vectors

    y = 0 + 17.34t - 4.9t^2 = 17.34*2.66 - 4.9*2.66^2 = 11.45

    so, it clears the bar

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. English

    Can anyone check this text and if there are any mistakes, fix it?
  2. Physics Honors

    A punter in a football game kicks a ball from the goal line at 60° from the horizontal at 25 m/s. How far down field does the ball land?
  3. math-fractions

    last season a little league baseball team traveled a total of 133 miles. For their first game they traveled 16 2/3 miles; second game 2 1/6; third game 25 4/9; and their fourth game 32 1/3. How many miles did they travel for their …
  4. Probabiliy

    Another card game. In a new card game, you start with a well-shuffed full deck and draw 3 cards without replacement. If you draw 3 hearts, you win $50. If you draw 3 black cards, you win $25. For any other draws, you win nothing. (a) …
  5. algebra 1

    In a basketball game you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 5 points a game and have a season high of 12 points a game. How many field goals and free throws could you …
  6. English

    Literary Analysis: Plot Read the selection. Then, answer the questions that follow. I smiled to myself as I remembered the game that made me a star ten years ago . . . The rain was pouring down as I stepped out onto the football field. …
  7. English

    Literary Analysis: Plot Read the selection. Then, answer the questions that follow. I smiled to myself as I remembered the game that made me a star ten years ago . . . The rain was pouring down as I stepped out onto the football field. …
  8. statitics

    you are going to play two games the probability you win the first game is 0.60 if you win the first game the probability you will win the second game is 0.75 if you lose the first game the probability you win the second game is 0.55. …
  9. English

    Posted by rfvv on Monday, November 21, 2016 at 4:44am. 1. Korea drew the game against Japan. 2. Korea tied the game against Japan. 3. Korea and Japan drew in the game. 4. Korea and Japan tied in the game. 5. The game between Korea …
  10. math

    In a football game, a touchdown with an extra point is worth 7 points and a field goal is worth 3 points. Suppose that in a game the only scoring done by teams are touchdowns please help!!!!

More Similar Questions