Concept explainers
|| The longest home run. According to the Guinness Book of World Records, the longest home run ever measured was hit by Roy “Dizzy” Carlyle in a minor-league game. The ball traveled 188 m (618 ft) before landing on the ground outside the ballpark. (a) Assuming that the ball’s initial velocity was 45° above the horizontal, and ignoring air resistance, what did the initial speed of the ball need to be to produce such a home run if the ball was hit at a point 0.9 m (3.0 ft) above ground level? Assume that the ground was perfectly flat. (b) How far would the ball be above a fence 3.0 m (10 ft) in height if the fence were 116 m (380 ft) from home plate?
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
College Physics (10th Edition)
Additional Science Textbook Solutions
University Physics Volume 2
Essential University Physics (3rd Edition)
Modern Physics
Essential University Physics: Volume 1 (3rd Edition)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Applied Physics (11th Edition)
- In the blizzard of ’88, a rancher was forced to drop hay bales from an airplane to feed her cattle. The plane flew horizontally at 160 km/hr and dropped the bales from a height of 80 m above the flat range, (a) She wanted the bales of hay to land 30 m behind the cattle so as to not hit them. Where should she push the bales out of the airplane? (b) To not hit the cattle, what is the largest time error she could make while pushing the bales out of the airplane? Ignore air resistance.arrow_forwardAn athlete in a long jump trial leaves the ground at an 80o angle and covers a horizontal distance of 8.7 m. The speed with which he can jump remains constant. What should he do to increase the horizontal distance of his jump? Explain why this would work.arrow_forwardA baseball is hit at an angle 0 and travels along a parabolic arc before it strikes the ground. Which one of the following statements is true? O The acceleration of the ball decreases as the ball moves upward. O The velocity of the ball is O when the ball is at the highest point in the arc. O The acceleration of the ball is 0 when the ball is at the highest point in the arc. O The velocity of the ball is a maximum when the ball is at the highest point in the arc. O None of the above.arrow_forward
- 3. A batted baseball is hit with a speed of 45 m/s starting from an initial height of 1 m. Find how high the ball travels in two cases: (a) a ball hit directly upward and (b) a ball hit at an angle of 70° with respect to the horizontal. Also find how long the ball stays in the air in each case.arrow_forwardAnswers are a) Bx = -2 & By = 2 b) 2.83, 135 degree counter clockwise How do you get these values?arrow_forwardPlease answer it within 30 minutes.I will upvote! Problem: Often times in football a punter may not need to kick the ball very far, but rather kick the ball high so that the other players have a lot of time to run down and make a tackle. If a punter punts a ball from 1.5 m high with an initial velocity of 25 m/sec an angle of72∘ to the horizontal, what are the maximum height and time of flight for the ball? Assume the ball lands on the ground.arrow_forward
- (a) A soccer player kicks a rock horizontally off a 31 m high cliff into a pool of water. If the player hears the sound of the splash 2.67 s later, what was the initial speed given to the rock (in m/s)? Assume the speed of sound in air is 343 m/s. 273.73 X You appear to have correctly calculated the distance the rock travels, but you have then used the wrong time to calculate the horizontal speed. m/s (b) What If? If the temperature near the cliff suddenly falls to 0°C, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.67 s after kicking the rock? m/sarrow_forwardY 0 H D A soccer player kicks the ball, which moves as shown in the figure. You are given this information: the angle e and the maximum height H. Calculate the initial speed vo and the horizontal distance D. DATA 0 = angle = 25 degrees; H = 4.4 m; {initial speed} (in m/s) X A: 4.61 OB: 5.76 OC: 7.20 OD: 9.01 OE: 11.26 OF: 14.07 OG: 17.59 OH: 21.99 {horizontal distance) (in m) OA: 33.40 B: 37.74 OC: 42.65 OD: 48.19 OE: 54.46 OF: 61.54 OG: 69.54 OH: 78.58arrow_forward|A ball is dropped from a lookout 180 metres high. At the same time, a stone is fired vertically upwards from the valley floor with speed V m/s. Take g = a Find for what values of V a collision in the air will occur. Find, in terms of V, the time and the height when collision occurs, and prove that the collision speed is V m/s. b Find the value of V for which they collide halfway up the cliff, and the time taken. 10 m/s'.arrow_forward
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill