When a field goal kicker kicks a football as hard as he can at 45° to the horizontal, the ball just clears the 3-m high crossbar of the goalposts 45.7 m away. (a) What is the maximum speed the kicker can impart to the football? (b) In addition to clearing the crossbar, the football must be high enough in the air early during its flight to clear the reach of the onrushing defensive lineman. If the lineman is 4.6 m away and has a vertical reach of 2.5 m, can he block the 45.7-m field goal attempt? (c) What if the lineman is 1.0 m away?

When a field goal kicker kicks a football as hard as he can at 45° to the horizontal, the ball just clears the 3-m high crossbar of the goalposts 45.7 m away. (a) What is the maximum speed the kicker can impart to the football? (b) In addition to clearing the crossbar, the football must be high enough in the air early during its flight to clear the reach of the onrushing defensive lineman. If the lineman is 4.6 m away and has a vertical reach of 2.5 m, can he block the 45.7-m field goal attempt? (c) What if the lineman is 1.0 m away?

Name: When a field goal kicker kicks a football as hard as he can at 45° to
Uploaded: 2024-03-20T06:57:47.000Z
Channel: Bartleby
Description: When a field goal kicker kicks a football as hard as he can at 45° to the horizontal, the ball just clears the 3-m high crossbar of the goalposts 45.7 m away. (a) What is the maximum speed the kicker can impart to the football? (b) In addition to cle

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 9P

See similar textbooks

Similar questions

The highest barrier that a projectile can clear is 12.3 m, when the projectile is launched at an angle of 16.4° above the horizontal. What is the projectile's launch speed?
Our pinoy pride, Kai Sotto, is now training for his upcoming 3x3 basketball tournament next year. Under International Basketball Federation (FIBA) rules, the three-point line is 6.75 meters from the center of the basket. If he will train for three-point shooting, what should be the ball's angle when he shoots the ball if he will try to shoot from a height as high as the basket with an initial velocity of 8.2 m/s? Is it 40°; 50°; 60°? How long would it take for the ball to reach the ring for each of the angles? What is the ball's maximum height for each of the angles? And how fast is the ball's horizontal and vertical initial velocities for each or the angles?
A projectile is fired horizontally with an initial speed of 50 m/s. Neglect air resistance. What is the speed of the projectile 3 seconds after it is fired?
A volleyball is served at a speed of 13.2 m/s with the player's hand making contact with the ball 2.20 meters above the ground. The ball comes off the hand at an angle of 20.0° above the horizontal. The net is 10 meters away from where the server strikes the ball and the top of the net is at a height of 2.43 meters above the ground. Will the ball clear the net? By how much does it clear it/miss clearing it? Where does ball reach max height? The back line of the court on the receiving side is 19 meters away from where the server strikes the ball. Does the ball land in bounds? If it does, where does it land?
A basketball player intends to hit the ball in a basket at a distance8.00 m. The basketball basket is at a height of 3.00 m from the ground and the ball leaves the hand of the player at a height of 1.00 m from the ground. If the ball is thrown from an angle of 45° with the horizontal, what is the initial speed of the ball needed to make the basket?
A placekicker is attempting to make a 59-yard field goal. If the launch angle of the football is 38°, what is the minimum initial speed u which will allow the kicker to succeed?
A girl kicks a soccer ball with an initial velocity of 25 m/s at an angle of 30° above the horizontal. The horizontal component of the velocity of the ball is described by one of the following statements.
Jonah is reading a novel that describes an athlete participating in an archery competition. The athlete is 186 cm tall and hits an amazing shot where they fire the arrow completely horizontally and it lands 51 m away from them. 1) neglecting air resistance and drag, what must the initial speed of the arrow be? 2) if the arrow was instead fired at an angle of 45°, how far would it have travelled if it was launched at 187m/s?
In a jump serve in volleyball, the server throws the ball into the air and strikes it with his open hand from a position 9 m behind the net. An athletic player may be able to hit it when the bottom of the ball is 3 m above the ground. Without aerodynamic effects, a horizontally hit serve will never work—it will go into the net or go too far and out of bounds. How much time does it take for the ball to fall to the height of the top of the net (which is 2.41 m above the floor)? Also, calculate the minimum launch speed for the ball to make it over the net. Round the final answer to two decimal places. What is the range of the ball struck horizontally at this speed? Round the final answer to one decimal place. Do you think that putting topspin on the serve might improve the serve? The “sky serve” is intended to land on the opponent’s side at a nearly straight-down trajectory. If this serve were a sky serve, launched at the same speed, but at the nearly vertical angle of 85°, would it…
A punter kicks a football at an angle of 30 degrees with the horizontal at an initial speed of 15 m/s. Where should a punt returner position himself to catch the ball just before it strikes the ground?
Messi is keeping his free-kick skills sharp this quarantine by playing football with his neighbour's monkey.From the roof of his house, which is 7 meters above the ground, he kicks a ball horizontally towards his neighbour'shouse, which is 6 meters away and also has a roof that is 7m above the ground. At the same instance, his neighbour'spet monkey drops off the ledge of his roof to try to catch the ball. Please ignore air resistance, and take g=9.81m/s2 If Messi kicks the ball with the minimum required speed; at what time (in seconds) after the kick is the monkey able to catch the ball?The minimum speed (in m/s) is 5.023.
When a projectile is fired with a velocity of 815 m/s at angle of 37 degrees above the horizontal, the maximum height reached by the projectile is about?