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When a field goal kicker kicks a football as hard as he can at
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Chapter 4 Solutions
University Physics Volume 1
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- Can you help me with this question? A motocyclist drives his bike off of a 12 m high horizontal ledge. If he is driving at a speed of 22 m/s horizontally, how far from the base of the ledge does he land?arrow_forwardA 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?arrow_forwardJonah 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?arrow_forward
- 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…arrow_forwardA 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.arrow_forwardA baseball with mass of 0.14 kg is batted into the air. It's initial speed is 38.1 m/s directed at an angle 26 degrees above the horizontal. Of the height of the ball when it was struck by the bat is 35 cm how high off the ground is the ball when it reaches the highest point in its trajectory?arrow_forward
- 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?arrow_forwardA football kicker is attempting a field goal from 33m out. The ball is kicked and just clears the lower bar with a time of flight of 2.9s. If the angle of the kick was 45°, what was the initial speed of the ball?arrow_forward3. A player from team A was awarded two free throws. On the first attempt, he released the ball with a velocity of 6.0 m/s at 45° above the horizontal from a height of 2.0 m from the floor. (a) Is this a miss? (b) For the second attempt, the player shoots at 45° from the same point. What must be the initial speed of the ball so that it will go through the basket? The basket is 4.21 m from the free throw line and 3.05 m above the floor.arrow_forward
- A tennis ball with mass of 0.16 kg is batted into the air. Its initial speed is 36.3 m/s, directed at an angle 25 degrees above the horizontal. If the height of the ball when it was struck by the racket is 35 cm, how high off the ground (in m) is the ball when it reaches the highest point in its trajectory?arrow_forwardA toy launcher projects a missile with an initial speed of 20 m /s . If the missile lands 12 m away at the same elevation, what must have been the angle of elevation of the launcher.arrow_forwardThe lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net (see the drawing). Suppose that you loft the ball with an initial speed of 15.0 m/s at an angle of 50.0⁰ the horizontal. At this instant your opponent is 10.0 m away from the ball. He begins moving away from you 0.32 s later, hoping to reach the ball and hit it back at the moment that it is 2.10 m above its launch point. With what minimum average speed must he move? (Ignore the fact that he can stretch, so that his racket can reach the ball before he does.) Number 15.0 m/s 50.0° Units 10.0 m 2.10 marrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning