Before pulling her ripcord, Julie reorients her body in the “belly down” position so she is not moving quite as fast when her parachute opens. If she begins this maneuver at an altitude of 4000 ft, how long does she spend in a free fall before beginning the reorientation?
Some jumpers wear “ wingsuits” (see Figure 5.31). These suits have fabric panels between the arms and legs and allow the wearer to glide around in a free fall, much like a flying squirrel. (Indeed, the suits are sometimes called “flying squirrel suits.”) When wearing these suits, terminal velocity can be reduced to about 30 mph (44 ft/sec), allowing the wearers a much longer time in the air. Wingsuit flyers still use parachutes to land; although the vertical velocities are within the margin of safety, horizontal velocities can exceed 70 mph, much too fast to land safely.
Trending nowThis is a popular solution!
Chapter 5 Solutions
Calculus Volume 1
Additional Math Textbook Solutions
Calculus Volume 2
Introductory Statistics
Mathematics for Elementary Teachers with Activities (5th Edition)
Mathematics All Around (6th Edition)
Finite Mathematics & Its Applications (12th Edition)
Using & Understanding Mathematics: A Quantitative Reasoning Approach (7th Edition)
- The second hand of a clock is 8 centimeters long. Find the linear speed of the tip of the second hand as it passes around the clock face.arrow_forwardA cross-country runner jogs at a rate of 15 feet per second. If she runs 300 feet from A to B, 450 feet from B to C, and then 600 feet from C back to A. how long will it take her to return to point A? See the figure for Exercise 7. Exercises 7, 8arrow_forwardWhen solving a uniform motion problem, how does creating a table help you?arrow_forward
- Let’s say you’re on top of a cliff, which drops vertically 150m to the ocean below. You throw a ball with an initial speed of 8.40m/s at an angle of 20 above the horizontal. About how many meters is it from the base of the cliff to the point of impact? Use g=9.806m/s2 for gravity.arrow_forwardGrumpy, anti-social Professor Sosa loves standing on top of a 262 ft building and tossing water bal- loons at unsuspecting students below. If he drops a balloon, how long will it take for it to hit a 6-foot-tall student? What will the velocity of the bag be when it makes contact?arrow_forwardOne a teeter-totter, Ole weighs 292# and is 17' from the center. Lena is 15' 8" from the center, they are equilibrium. How much does Lena weigh?arrow_forward
- A street light is at the top of a 16 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 5 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 50 ft from the base of the pole? F3 Question Help: Video 5 Submit Question F4 6 F5 7 & Q Search F6 8 * ft sec F7 9 F8 0 M 61 M F10 D|| F11 F12 BACKSPACE PAUSE INC 9. PG DN 01 SCR LOCKarrow_forwardVisitors to the top of the Empire State Building, which is 1,250 feet high, are cautioned not to throw objects off the roof. How much damage could an object of mass 1 oz. dropped from the roof do?arrow_forwardA rescue plane flies horizontally at a constant speed searching for a disabled boat. When the plane is directly above the boat, the boat's crew blows a loud horn. By the time the plane's sound detector perceives the horn's sound, the plane has traveled a distance equal to one-third its altitude above the ocean. (a) If it takes the sound 2.18 s to reach the plane, determine the speed of the plane. Take the speed of sound to be 343 m/s. m/s (b) What is its altitude? marrow_forward
- A TV camera is situated 100 m from the site of the Endeavour launch. The rocket's elevation t seconds after liftoff is s = 200f“ . How rapidly must the camera angle increase in order to maintain a view of the rocket 5 seconds of. 2. liftoff?arrow_forwardAt 425 feet tall, the Orlando Starflyer is one of the tallest structures in Florida and the tallest Starflyer in the world, standing 25 feet higher than the Orlando Eye on International Drive. The image below shows the position of one swing at two different speeds. Which rider, A or B, is farther from the base of the swing tower? Rider A Rider B O Neither, they are equidistant from the basearrow_forwardAn elastic band is hung on a hook and a mass is hung on the lower end of the band. When the mass is pulled downward and then released, it vibrates vertically. The equation of motion is s=2cost+3sint, t>=0, , when is the speed the greatest?arrow_forward
- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,Trigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage LearningGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
- Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice University