COLLEGE PHY2053 W/MODIFIED ACCESS>BI<
16th Edition
ISBN: 9781323515303
Author: Knight
Publisher: PEARSON C
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Chapter 10, Problem 15CQ
To determine
To compare: The kinetic energies of two balls just before they hit the ground.
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An object is subjected to a friction force with magnitude 5.49 N, which acts against the object's velocity. What is the work (in J) needed to move the object at constant speed for the following routes?
y (m)
C
B
(5.00, 5.00)
A
x (m)
©
(a) the purple path O to A followed by a return purple path to O
]
(b) the purple path O to C followed by a return blue path to O
]
(c) the blue path O to C followed by a return blue path to O
]
(d) Each of your three answers should be nonzero. What is the significance of this observation?
○ The force of friction is a conservative force.
○ The force of friction is a nonconservative force.
Chapter 10 Solutions
COLLEGE PHY2053 W/MODIFIED ACCESS>BI<
Ch. 10 - The brake shoes of your car are made of a material...Ch. 10 - For Questions 3 through 1 0, give a specific...Ch. 10 - For Questions 3 through 1 0, give a specific...Ch. 10 - For Questions 3 through 10, give a specific...Ch. 10 - For Questions 3 through 10, give a specific...Ch. 10 - For Questions 3 through 1 0, give a specific...Ch. 10 - For Questions 3 through 1 0, give a specific...Ch. 10 - For Questions 3 through 1 0, give a specific...Ch. 10 - For Questions 3 through 1 0, give a specific...Ch. 10 - A ball of putty is dropped from a height of 2 m...
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. 15CQCh. 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. 19CQCh. 10 - Sandy and Chris stand on the edge of a cliff and...Ch. 10 - Prob. 21CQCh. 10 - Prob. 24CQCh. 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. 30MCQCh. 10 - Prob. 31MCQCh. 10 - Prob. 1PCh. 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. 4PCh. 10 - A boy flies a kite with the string at a 30 angle...Ch. 10 - Prob. 6PCh. 10 - A crate slides down a ramp that makes a 20 angle...Ch. 10 - Prob. 8PCh. 10 - At what speed does a 1000 kg compact car have the...Ch. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - How fast would an 80 kg man need to run in order...Ch. 10 - Prob. 14PCh. 10 - Sams job at the amusement park is to slow down and...Ch. 10 - Prob. 16PCh. 10 - Prob. 17PCh. 10 - Prob. 18PCh. 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. 26PCh. 10 - The elastic energy stored in your tendons can...Ch. 10 - Prob. 28PCh. 10 - Mark pushes his broken car 150 m down the block to...Ch. 10 - Prob. 30PCh. 10 - A 900 N crate slides 12m down a ramp that makes an...Ch. 10 - Prob. 32PCh. 10 - A 25 kg child slides down a playground slide at a...Ch. 10 - Prob. 34PCh. 10 - A boy reaches out of a window and tosses a ball...Ch. 10 - Prob. 36PCh. 10 - What minimum speed does a 100 g puck need to make...Ch. 10 - Prob. 38PCh. 10 - Prob. 39PCh. 10 - Prob. 40PCh. 10 - A fireman of mass 80 kg slides down a pole. When...Ch. 10 - Prob. 42PCh. 10 - Prob. 43PCh. 10 - Prob. 44PCh. 10 - In the winter activity of tubing, riders slide...Ch. 10 - Prob. 46PCh. 10 - A cyclist is coasting at 12 m/s when she starts...Ch. 10 - Prob. 48PCh. 10 - Prob. 49PCh. 10 - Prob. 51PCh. 10 - Prob. 52PCh. 10 - Prob. 53PCh. 10 - Prob. 54PCh. 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. 57PCh. 10 - Two balls undergo a perfectly elastic head-on...Ch. 10 - Prob. 59PCh. 10 - Prob. 61PCh. 10 - Prob. 62PCh. 10 - A 1000 kg sports car accelerates from 0 to 30m/sin...Ch. 10 - Prob. 64PCh. 10 - An elite Tour de France cyclist can maintain an...Ch. 10 - Prob. 66PCh. 10 - A 710 kg car drives at a constant speed of 23 m/s....Ch. 10 - Prob. 68PCh. 10 - An elevator weighing 2500 N ascends at a constant...Ch. 10 - Prob. 70PCh. 10 - A 550 kg elevator accelerates upward at 1.2 m/s2...Ch. 10 - Prob. 73GPCh. 10 - Prob. 74GPCh. 10 - Prob. 75GPCh. 10 - You are driving your 1500 kg car at 20 m/s down a...Ch. 10 - Prob. 77GPCh. 10 - Prob. 78GPCh. 10 - Prob. 79GPCh. 10 - Prob. 80GPCh. 10 - The maximum energy a bone can absorb without...Ch. 10 - In an amusement park water slide, people slide...Ch. 10 - Prob. 83GPCh. 10 - Prob. 84GPCh. 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. 87GPCh. 10 - Prob. 88GPCh. 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. 93MSPPCh. 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...
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