In the cartoon movie Pocahontas (https://openstaxcollege.org/I/2lpocahontclip) Pocahontas runs to the edge of a cliff and jumps off, showcasing the fun side of her personality. (a) If she is running at 3.0 m/s before jumping off the cliff and she hits the water at the bottom of the cliff at 20.0 m/s, how high is the cliff? Assume negligible air drag in this cartoon. (b) If she jumped off the same cliff from a standstill, how fast would she be falling right before she hit the water?
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
University Physics Volume 1
Additional Science Textbook Solutions
Campbell Essential Biology (7th Edition)
Introductory Chemistry (6th Edition)
Human Biology: Concepts and Current Issues (8th Edition)
Biology: Life on Earth with Physiology (11th Edition)
Campbell Biology: Concepts & Connections (9th Edition)
Living By Chemistry: First Edition Textbook
- A diver jumps off a cliff of h at an angle of 0 =38° (see figure below). He reaches a maximum height of hmaz x = 42m from the base of the cliff. Determine the speed of the diver just before he hits the water, = 3m above the top of the cliff before falling to the water below. He hits the water VA =?.Express your answer in units of m/s. Take g 9.80m/s2. Round your answer to zero decimal places. Jrmax Answer:arrow_forwardPlease add the solution to the problem.Q15arrow_forwardA physics book slides off a horizontal tabletop with a speedof 1.10 m/s. It strikes the floor in 0.480 s. Ignore air resistance. Find the height of the tabletop above the floorarrow_forward
- The commander has asked you shoot cannonball off the side of a cliff that is 70 meters tall. The cannonball leaves the cannon with a speed of 35 m/s. How far away does it hit the ground?arrow_forwardA very bored 318 kg bear decides to jump across a stream. The stream is 6 m wide and the east bank of the stream is 1m higher than the west bank (where the bear starts). The bear can jump with an initial velocity vi(4m/s, 4m/s) , and decides to start from 3 in the air, halfway up a sturdy tree. If the origin is at the bear's foot (up in the tree), write an equation describing the coordinate of the bear while it is in the air. Use the following table as a reference. Note that it may not be necessary to use every variable. For Use t garrow_forwardTwo objects are thrown from the top of a tall building and experience no appreciable air resistance. One is thrown up, and the other is thrown down, both with the same initial speed. What are their speeds when they hit the street? O They are traveling at the same speed. O The one thrown down is traveling faster. O The one thrown up is traveling faster. none of the given choices O The one thrown up is traveling slowerarrow_forward
- A ball is dropped (from rest) from a window and hits the ground with a speed of 7.0m/s. If the ball were dropped from double the height, what would be its speed (in m/s) when it hits the ground? Your Answer:arrow_forwardI’m confused on what are the answers for these questions.Can u please tell me the answers to these questions ?arrow_forwardA man on a motorcycle plans to make a jump as shown in the figure. h If he leaves the ramp with a speed of 29.5 m/s and has a speed of 28.0 m/s at the top of his trajectory, determine his maximum height (h) (in m) above the end of the ramp. Ignore friction and air resistance. marrow_forward
- A very bored 318 kg bear decides to jump across a stream. The stream is 6 m wide and the east bank of the stream is 1m higher than the west bank (where the bear starts). The bear can jump with an initial velocity vi (4m/s, 4m/s) , and decides to start from 3m in the air, halfway up a sturdy tree. Part 1 If the origin is at the bear's foot (up in the tree), write an equation describing the coordinate of the bear while it is in the air. Use the following table as a reference. Note that it may not be necessary to use every variable. For Use Δt t g garrow_forwardAlice and Tom dive from an overhang into the lake below. Tom simply drops straight down from the edge, but Alice takes a running start and jumps with an initial horizontal velocity of 25 m/s. Neither person experiences any significant air resistance. Just as they reach the lake below (select all answers that are true) Group of answer choices: None of the above choices are correct. they will both have the same speed. the speed of Alice is larger than that of Tom. Alice reaches the surface of the lake first. They reach the surface of the lake at the same time. Tom reaches the surface of the lake first. the speed of Tom is larger than that of Alice.arrow_forwardOn a distant planet (NOT EARTH!!!) an object is allowed to slide 30.0 m down a frictionless ramp, with an incline of 30.0° (as shown in the diagram) with an initial speed of 6.0 m/s. Once the object reaches the bottom of the ramp, it is allowed to slide across a rough surface (u=D0.15) for 15.0 m, at which point its speed is 2.0 m/s. What is the gravitational field strength (g) on the different planet? 30.0 m 30.0 15.0 marrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning