College Physics: A Strategic Approach Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition) (What's New in Astronomy & Physics)

4th Edition

ISBN: 9780134641492

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

See similar textbooks

Videos

Textbook Question

Chapter 10, Problem 95MSPP

Work and Power in Cycling

When you ride a bicycle at constant speed, almost all of the energy you expend goes into the work you do against the drag force of the air. In this problem, assume that all of the energy expended goes into working against drag. As we saw in Section 5.7, the drag force on an object is approximately proportional to the square of its speed with respect to the air. For this problem, assume that F α v² exactly and that the air is motionless with respect to the ground unless noted otherwise. Suppose a cyclist and her bicycle have a combined mass of 60 kg and she is cycling along at a speed of 5 m/s.

86. lf the drag force on the cyclist is 10 N, how much energy does she use in cycling 1 km?

A. 6 kJ

B. 10 kJ

C. 50 kJ

D.100kJ

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 10, Problem 94MSPP

Chapter 10, Problem 96MSPP

Students have asked these similar questions

Two blocks, A and B (with mass 45 kg and 120 kg, respectively), are connected by a string, as shown in the figure below. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is μk = 0.26. Determine the change in the kinetic energy of block A as it moves from to ①, a distance of 15 m up the incline (and block B drops downward a distance of 15 m) if the system starts from rest. ] 37° A © B

A skateboarder with his board can be modeled as a particle of mass 80.0 kg, located at his center of mass. As shown in the figure below, the skateboarder starts from rest in a crouching position at one lip of a half-pipe (point). On his descent, the skateboarder moves without friction so that his center of mass moves through one quarter of a circle of radius 6.20 m. i (a) Find his speed at the bottom of the half-pipe (point Ⓡ). m/s (b) Immediately after passing point Ⓑ, he stands up and raises his arms, lifting his center of mass and essentially "pumping" energy into the system. Next, the skateboarder glides upward with his center of mass moving in a quarter circle of radius 5.71 m, reaching point D. As he passes through point ①, the speed of the skateboarder is 5.37 m/s. How much chemical potential energy in the body of the skateboarder was converted to mechanical energy when he stood up at point Ⓑ? ] (c) How high above point ① does he rise? m

A 31.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 29.0° with the vertical. (a) Neglecting friction, find the child's speed at the lowest position. m/s (b) If the actual speed of the child at the lowest position is 2.40 m/s, what is the mechanical energy lost due to friction? ]

Chapter 10 Solutions

College Physics: A Strategic Approach Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition) (What's New in Astronomy & Physics)

Ch. 10 - Puck B has twice the mass of puck A. Starting from...Ch. 10 - To change a tire, you need to use a jack to raise...Ch. 10 - Prob. 15CQ Ch. 10 - A roller coaster car rolls down a frictionless...Ch. 10 - A spring gun shoots out a plastic ball at speed v....Ch. 10 - Prob. 19CQ Ch. 10 - Sandy and Chris stand on the edge of a cliff and...Ch. 10 - Prob. 21CQ Ch. 10 - Prob. 24CQ Ch. 10 - A roller coaster starts from rest at its highest...Ch. 10 - A woman uses a pulley and a rope to raise a 20 kg...Ch. 10 - A hockey puck sliding along frictionless ice with...Ch. 10 - A block slides down a smooth ramp, starting from...Ch. 10 - A wrecking ball is suspended from a 5.0-m-long...Ch. 10 - Prob. 30MCQ Ch. 10 - Prob. 31MCQ Ch. 10 - Prob. 1P Ch. 10 - The two ropes seen in Figure P10.2 are used to...Ch. 10 - The two ropes shown in the bird's-eye view of...Ch. 10 - Prob. 4P Ch. 10 - A boy flies a kite with the string at a 30 angle...Ch. 10 - Prob. 6P Ch. 10 - A crate slides down a ramp that makes a 20 angle...Ch. 10 - Prob. 8P Ch. 10 - At what speed does a 1000 kg compact car have the...Ch. 10 - Prob. 10P Ch. 10 - Prob. 11P Ch. 10 - Prob. 12P Ch. 10 - How fast would an 80 kg man need to run in order...Ch. 10 - Prob. 14P Ch. 10 - Sams job at the amusement park is to slow down and...Ch. 10 - Prob. 16P Ch. 10 - Prob. 17P Ch. 10 - Prob. 18P Ch. 10 - An energy storage system based on a flywheel (a...Ch. 10 - The lowest point in death Valley is 85.0 m below...Ch. 10 - The world's fastest humans can reach speeds of...Ch. 10 - A 72 kg bike racer climbs a 1200-m-long section of...Ch. 10 - A 1000 kg wrecking ball hangs from a 15-m-long...Ch. 10 - How far must you stretch a spring with k = 1000...Ch. 10 - How much energy can be stored in a spring with a...Ch. 10 - Prob. 26P Ch. 10 - The elastic energy stored in your tendons can...Ch. 10 - Prob. 28P Ch. 10 - Mark pushes his broken car 150 m down the block to...Ch. 10 - Prob. 30P Ch. 10 - A 900 N crate slides 12m down a ramp that makes an...Ch. 10 - Prob. 32P Ch. 10 - A 25 kg child slides down a playground slide at a...Ch. 10 - Prob. 34P Ch. 10 - A boy reaches out of a window and tosses a ball...Ch. 10 - Prob. 36P Ch. 10 - What minimum speed does a 100 g puck need to make...Ch. 10 - Prob. 38P Ch. 10 - Prob. 39P Ch. 10 - Prob. 40P Ch. 10 - A fireman of mass 80 kg slides down a pole. When...Ch. 10 - Prob. 42P Ch. 10 - Prob. 43P Ch. 10 - Prob. 44P Ch. 10 - In the winter activity of tubing, riders slide...Ch. 10 - Prob. 46P Ch. 10 - A cyclist is coasting at 12 m/s when she starts...Ch. 10 - Prob. 48P Ch. 10 - Prob. 49P Ch. 10 - Prob. 51P Ch. 10 - Prob. 52P Ch. 10 - Prob. 53P Ch. 10 - Prob. 54P Ch. 10 - A 50 g marble moving at 2.0 m/s strikes a 20 g...Ch. 10 - Ball 1, with a mass of 100 g and traveling at 10...Ch. 10 - Prob. 57P Ch. 10 - Two balls undergo a perfectly elastic head-on...Ch. 10 - Prob. 59P Ch. 10 - Prob. 61P Ch. 10 - Prob. 62P Ch. 10 - A 1000 kg sports car accelerates from 0 to 30m/sin...Ch. 10 - Prob. 64P Ch. 10 - An elite Tour de France cyclist can maintain an...Ch. 10 - Prob. 66P Ch. 10 - A 710 kg car drives at a constant speed of 23 m/s....Ch. 10 - Prob. 68P Ch. 10 - An elevator weighing 2500 N ascends at a constant...Ch. 10 - Prob. 70P Ch. 10 - A 550 kg elevator accelerates upward at 1.2 m/s2...Ch. 10 - Prob. 73GP Ch. 10 - Prob. 74GP Ch. 10 - Prob. 75GP Ch. 10 - You are driving your 1500 kg car at 20 m/s down a...Ch. 10 - Prob. 77GP Ch. 10 - Prob. 78GP Ch. 10 - Prob. 79GP Ch. 10 - Prob. 80GP Ch. 10 - The maximum energy a bone can absorb without...Ch. 10 - In an amusement park water slide, people slide...Ch. 10 - Prob. 83GP Ch. 10 - Prob. 84GP Ch. 10 - Two coupled boxcars are rolling along at 2.5 m/s...Ch. 10 - A 50 g ball of clay traveling at 6.5 m/s hits and...Ch. 10 - Prob. 87GP Ch. 10 - Prob. 88GP Ch. 10 - The mass of an elevator and its occupants is 1200...Ch. 10 - Tennis Ball Testing A tennis ball bouncing on a...Ch. 10 - Tennis Ball Testing A tennis ball bouncing on a...Ch. 10 - Tennis Ball Testing A tennis ball bouncing on a...Ch. 10 - Prob. 93MSPP Ch. 10 - Tennis Ball Testing A tennis ball bouncing on a...Ch. 10 - Work and Power in Cycling When you ride a bicycle...Ch. 10 - Work and Power in Cycling When you ride a bicycle...Ch. 10 - Work and Power in Cycling When you ride a bicycle...Ch. 10 - Work and Power in Cycling When you ride a bicycle...Ch. 10 - Work and Power in Cycling When you ride a bicycle...

Additional Science Textbook Solutions

Find more solutions based on key concepts

1.1 Write a one-sentence definition for each of the following: a. chemistry b. chemical

Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)

Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk(*) desig...

Cosmic Perspective Fundamentals

Low-pressure centers are also referred to as ______, while high-pressure centers are called ______.

Applications and Investigations in Earth Science (9th Edition)

5. When the phenotype of heterozygotes is intermediate between the phenotypes of the two homozygotes, this patt...

Biology: Life on Earth (11th Edition)

1. ___ Mitosis 2. ___ Meiosis 3. __ Homologous chromosomes 4. __ Crossing over 5. __ Cytokinesis A. Cytoplasmic...

Microbiology with Diseases by Body System (5th Edition)

14.19 In Genetic Analysis, we designed a screen to identify conditional mutants of S. cerevisiae in which the s...

Genetic Analysis: An Integrated Approach (3rd Edition)

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.