MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB
4th Edition
ISBN: 9780135245033
Author: Knight
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 10, Problem 44EAP
It’s been a great day of new, frictionless snow. Julie starts at the top of the 60° slope shown in FIGURE P10.44. At the bottom, a circular arc carries her through a 90° turn, and she then launches off a 3.0-m-high ramp. How far horizontally is her touchdown point from the end of the ramp?
FIGURE P10.44
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
It's been a great day of new, frictionless snow. Julie starts
at the top of the 60° slope shown in the figure. At the
bottom, a circular arc carries her through a 90° turn, and
she then launches off a 3 m-high ramp. How far
horizontally is her touchdown point from the end of the
ramp?
25 m
90°
60°
$3.0 m
A Ferris wheel is a vertical, circular amusement ride with radius, R = 5 m. Riders sit on seats that swivel to remain
horizontal. The Ferris wheel rotates so that riders move at a constant speed, v = 5 m/s. Consider a rider whose mass, m =
70 kg.
Assume that the acceleration due to gravity, g = 10 m/s₂.
H
B
*
L.
How much work does the force exerted by the seat do on the rider as they move from point E to point ?
O None of these, because the rider's speed does not change
O 3500)
O-3501
O-3500
A wind turbine works by slowing the air that passes its blades and converting much of the extracted kinetic energy to electric energy. A large wind turbine has 45-m-radius blades. In typical conditions, 92,000 kg of air moves past the blades every second. If the air is moving at 12 m/s before it passes the blades and the wind turbine extracts 40% of this kinetic energy, how much energy is extracted every second?
Chapter 10 Solutions
MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB
Ch. 10 - Prob. 1CQCh. 10 - Can kinetic energy ever be negative? Can...Ch. 10 - Prob. 3CQCh. 10 - 4. The three balls in FIGURE Q1O.4, which have...Ch. 10 - Rank in order, from most to least, the elastic...Ch. 10 - 6. A spring is compressed 1.0 cm. How far must you...Ch. 10 - Prob. 7CQCh. 10 - A particle with the potential energy shown in...Ch. 10 - A compressed spring launches a block up an...Ch. 10 - 10. A process occurs in which a system’s potential...
Ch. 10 - A process occurs in which a system’s potential...Ch. 10 - FIGURE Q10.12 is the energy bar chart for a...Ch. 10 - Prob. 13CQCh. 10 - Object A is stationary while objects B and C are...Ch. 10 - Prob. 2EAPCh. 10 - 3. The lowest point in Death Valley is 85 m below...Ch. 10 - Prob. 4EAPCh. 10 - Prob. 5EAPCh. 10 - 6. What height does a frictionless playground...Ch. 10 - 7. A 55 kg skateboarder wants to just make it to...Ch. 10 - Prob. 8EAPCh. 10 - A pendulum is made by tying a 500 g ball to a...Ch. 10 - A 20 kg child is on a swing that hangs from...Ch. 10 - A 1500 kg car traveling at 10 m/s suddenly runs...Ch. 10 - Prob. 12EAPCh. 10 - A cannon tilted up at a 30° angle fires a cannon...Ch. 10 - In a hydroelectric dam, water falls 25 m and then...Ch. 10 - How far must you stretch a spring with k = 000 N/m...Ch. 10 - A stretched spring stores 2.0 J of energy. How...Ch. 10 - A student places her 500 g physics book on a...Ch. 10 - A block sliding along a horizontal frictionless...Ch. 10 - A 10 kg runaway grocery cart runs into a spring...Ch. 10 - As a 15,000 kg jet plane lands on an aircraft...Ch. 10 - The elastic energy stored in your tendons can...Ch. 10 - The spring in FIGURE EX10.22a is compressed by ?x....Ch. 10 - The spring in FIGURE EXIO.23a is compressed by ?x....Ch. 10 - FIGURE EX10.24 is the potential-energy diagram for...Ch. 10 - Prob. 25EAPCh. 10 - In FIGURE EX10.26, what is the maximum speed of a...Ch. 10 - Prob. 27EAPCh. 10 - FIGURE EX10.28 shows the potential energy of a 500...Ch. 10 - In FIGURE EX10.28, what is the maximum speed a 200...Ch. 10 - A system in which only one particle can move has...Ch. 10 - A system in which only one particle can move has...Ch. 10 - A particle moving along the y-axis is in a system...Ch. 10 - A particle moving along the x-axis is in a system...Ch. 10 - FIGURE EX10.34 shows the potential energy of a...Ch. 10 - A particle moves from A to D in FIGURE EX10.35...Ch. 10 - A force does work on a 50 g particle as the...Ch. 10 - A system loses 400 J of potential energy. In the...Ch. 10 - What is the final kinetic energy of the system for...Ch. 10 - How much work is done by the environment in the...Ch. 10 - A cable with 20.0 N tension pulls straight up on a...Ch. 10 - A very slippery ice cube slides in a vertical...Ch. 10 - A 50 g ice cube can slide up and down a...Ch. 10 - You have been hired to design a spring-launched...Ch. 10 - It’s been a great day of new, frictionless snow....Ch. 10 - Prob. 45EAPCh. 10 - A 1000 kg safe is 2.0 m above a heavy-duty spring...Ch. 10 - You have a ball of unknown mass, a spring with...Ch. 10 - Sam, whose mass is 75 kg, straps on his skis and...Ch. 10 - A horizontal spring with spring constant 100 N/m...Ch. 10 - Truck brakes can fail if they get too hot. In some...Ch. 10 - Prob. 51EAPCh. 10 - Use work and energy to find an expression for the...Ch. 10 - Prob. 53EAPCh. 10 - The spring shown in FIGURE 10.54 is compressed 50...Ch. 10 - Prob. 55EAPCh. 10 - Prob. 56EAPCh. 10 - A system has potential energy U(x) = x + sin ((2...Ch. 10 - Prob. 58EAPCh. 10 - Prob. 59EAPCh. 10 - Prob. 60EAPCh. 10 - The potential energy for a particle that can move...Ch. 10 - A particle that can move along the x-axis...Ch. 10 - An object moving in the xy-plane is subjected to...Ch. 10 - An object moving in the xy-plane is subjected to...Ch. 10 - Prob. 65EAPCh. 10 - In Problems 66 through 68 you are given the...Ch. 10 - Prob. 67EAPCh. 10 - Prob. 68EAPCh. 10 - A pendulum is formed from a small ball of mass m...Ch. 10 - Prob. 70EAPCh. 10 - Prob. 71EAPCh. 10 - Prob. 72EAPCh. 10 - The spring in FIGURE CP10.73 has a spring constant...Ch. 10 - A sled starts from rest at the top of the...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- degrees Question 8. A wrecking ball swings at the end of a 11.2-m cable on a vertical circular arc. The crane operator manages to give the ball a speed of 10.1 m/s as the ball passes through the lowest point of its swing and then gives the ball no further assistance. Friction and air resistance are negligible. What speed vf does the ball have when the cable makes an angle of 21.8° with respect to the vertical? Ans: 9.29 m/s the foctort accelerating animals, for it can go from rest toarrow_forwardA wrecking ball swings at the end of a 14.4-m cable on a vertical circular arc. The crane operator manages to give the ball a speed of 13.5 m/s as the ball passes through the lowest point of its swing and then gives the ball no further assistance. Friction and air resistance are negligible. What speed vf does the ball have when the cable makes an angle of 14.5 ° with respect to the vertical? Vf Number i Unitsarrow_forwardA smooth block is set at the top of a smooth track. There is no friction between the block and track. We would like the block to make its way through the entire track, and so it must stay on the track as it goes through the circular loop section. The block starts at rest, and the Radius of curvature for the loop is 10 meters. Use g = 9.8 m/s?. What is the minimum starting height H for the block if it is to make it through the loop while still staying on the track? Hint: At the top of the loop the Normal force will be zero in this situation. This is because we want a starting height that will give us just enough speed at the top of the loop to follow the circular path, no more, no less. H=? Rarrow_forward
- T3.16 Please help me answer this physics question.arrow_forwardPleasearrow_forwardUse g = 9.80 m/s^2 and assume all numbers are accurate to 3 significant figures unless otherwise indicated. a. A 15 kg box, initially at rest, slides down a ramp 2 m long that is inclined at an angle of 20 degrees with the horizontal. If there is no friction between the ramp surface and the crate, what is the kinetic energy (in J) of the crate at the bottom of the incline? b. After sliding down the ramp, the 15 kg box from part a slides on a horizontal surface whose coefficient of kinetic friction = 0.25. How far along the surface will the box slide before coming to rest?arrow_forward
- Please Asaparrow_forward3arrow_forwardQ2. A 70 kg skier that moves from rest at A is shown in Figure Q2. Suppose friction can be neglected while the direction of the launching velocity at B and the orientation of the underneath ground are 30° and 40° from a horizontal axis x, respectively, determine: (a) the launching velocity of the skier at B using the formulation of conservation of energy. (b) the distance, s where the skier lands at C by considering motion in x and y axes.arrow_forward
- Once the zip line has been completed, you walk up a path that takes you to an outcropping. A short bridge leads you to a scenic platform overhanging a drop. As soon as everyone in your group has gotten on the platform, your guide closes a gate and pushes a switch. You realize that the platform is attached to a pivot by a 10 m arm. The platform (12 m × 12 m) swings around to land against another landing 200° around the circle from your initial position. The swing takes 1 minute. Take the swing as travelling clockwise relative to the viewer. a) What is the average angular velocity of the platform? b. What is the distance travelled by a person in the middle of the platform during the swing? c. What is the difference between the tangential velocity of a person standing closest to the outer edge of the platform compared to that of the person standing closest to the pivot? d. If the arm spends the first half of the transit under positive acceleration to a maximum velocity and the second…arrow_forwardA sledder with a total mass 40.0 kg (including the sled) slides down a 10.0m hill that is 20◦ from the horizontal. i. Let the coefficient of kinetic friction be µK = 0.2. The velocity at the bottom of the hill is 5.5 m/s. What is the kinetic energy of the sledder at the bottom of the hill?ii. How much energy is lost due to friction?arrow_forwardEstimate the kinetic energy of the following: a. An ant walking across the kitchen floor b. A baseball thrown by a professional pitcher c. A car on the highway d. A large truck on the highwayarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY