Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
9th Edition
ISBN: 9781305932302
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Question
Chapter 8, Problem 27P
(a)
To determine
To determine: Whether the child-earth system is isolated or not.
(b)
To determine
To determine: Whether there is a non conservative force acting within the system or not.
(c)
To determine
To determine: The total energy of the earth-child system when the child is at the top of the water slide.
(d)
To determine
To determine: The expression for the total energy of the system at the launching point.
(e)
To determine
To determine: The expression for the total energy of the system at the highest point in her projectile motion.
(f)
To determine
To determine: The speed of child at launching point.
(g)
To determine
To determine: The maximum airborne height
(h)
To determine
To determine: Whether the answers would be same if the waterslide were not frictionless.
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Students have asked these similar questions
13. A child of mass m starts from rest and slides without fric-
|GP tion from a height h along a slide next to a pool (Fig. P8.13).
QIC She is launched from a height h/5 into the air over the pool.
S We wish to find the maximum height she reaches above the
water in her projectile motion. (a) Is the child-Earth system
isolated or nonisolated? Why? (b) Is there a nonconservative
force acting within the system? (c) Define the configuration
of the system when the child is at the water level as having
zero gravitational potential energy. Express the total energy
of the system when the child is at the top of the waterslide.
(d) Express the total energy of the system when the child is
at the launching point. (e) Express the total energy of the
system when the child is at the highest point in her projec-
tile motion. (f) From parts (c) and (d), determine her initial
Уmax
th/5 1
Figure P8.13
13. A child of mass m starts from rest and slides without fric-
GP tion from a height h along a slide next to a pool (Fig. P8.13).
QIC She is launched from a height h/5 into the air over the pool.
We wish to find the maximum height she reaches above the
water in her projectile motion. (a) Is the child-Earth system
isolated or nonisolated? Why? (b) Is there a nonconservative
force acting within the system? (c) Define the configuration
of the system when the child is at the water level as having
zero gravitational potential energy. Express the total energy
of the system when the child is at the top of the waterslide.
(d) Express the total energy of the system when the child is
at the launching point. (e) Express the total energy of the
system when the child is at the highest point in her projec-
tile motion. (f) From parts (c) and (d), determine her initial
A pendulum of mass m and length is initially at rest at an angle 8. The pendulum
then swings down and collides elastically with a stationary block of mass M. The
block slides along the surface and eventually stops when it encounters a rough
patch of length |Ad|.
Assume that m = 1.7kg, L = 0.80m, 0 = 67, M 2.8kg and Ad = 0.55m.
a) Calculate the speed of the block immediately after the elastic collision.
b) What is the coefficient of kinetic friction of the rough patch?
Chapter 8 Solutions
Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
Ch. 8.1 - Consider a block sliding over a horizontal surface...Ch. 8.2 - A rock of mass m is dropped to the ground from a...Ch. 8.2 - Three identical balls are thrown from the top of a...Ch. 8.3 - You are traveling along a freeway at 65 mi/h. Your...Ch. 8 - Prob. 1OQCh. 8 - Two children stand on a platform at the top of a...Ch. 8 - Prob. 3OQCh. 8 - An athlete jumping vertically on a trampoline...Ch. 8 - Prob. 5OQCh. 8 - In a laboratory model of cars skidding to a stop,...
Ch. 8 - Prob. 7OQCh. 8 - Prob. 8OQCh. 8 - Prob. 9OQCh. 8 - One person drops a ball from the top of a building...Ch. 8 - Prob. 2CQCh. 8 - Prob. 3CQCh. 8 - Prob. 4CQCh. 8 - Prob. 5CQCh. 8 - Prob. 6CQCh. 8 - In the general conservation of energy equation,...Ch. 8 - Prob. 8CQCh. 8 - A block is connected to a spring that is suspended...Ch. 8 - Prob. 10CQCh. 8 - Prob. 1PCh. 8 - Prob. 2PCh. 8 - Prob. 3PCh. 8 - A 20.0-kg cannonball is fired from a cannon with...Ch. 8 - Prob. 5PCh. 8 - A block of mass m = 5.00 kg is released from point...Ch. 8 - Prob. 7PCh. 8 - Prob. 8PCh. 8 - A light, rigid rod is 77.0 cm long. Its top end is...Ch. 8 - At 11:00 a.m, on September 7, 2001, more than one...Ch. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - A sled of mass m is given a kick on a frozen pond....Ch. 8 - A crate of mass 10.0 kg is pulled up a rough...Ch. 8 - Prob. 15PCh. 8 - A 40.0-kg box initially at rest is pushed 5.00 m...Ch. 8 - Prob. 17PCh. 8 - At time ti, the kinetic energy of a particle is...Ch. 8 - Prob. 19PCh. 8 - As shown in Figure P8.10, a green bead of mass 25...Ch. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - Prob. 23PCh. 8 - A 1.50-kg object is held 1.20 m above a relaxed...Ch. 8 - Prob. 25PCh. 8 - An 80.0-kg skydiver jumps out of a balloon at an...Ch. 8 - Prob. 27PCh. 8 - Prob. 28PCh. 8 - Prob. 29PCh. 8 - The electric motor of a model train accelerates...Ch. 8 - Prob. 31PCh. 8 - Prob. 32PCh. 8 - An energy-efficient lightbulb, taking in 28.0 W of...Ch. 8 - Prob. 34PCh. 8 - Prob. 35PCh. 8 - An older-model car accelerates from 0 to speed v...Ch. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - Prob. 39PCh. 8 - Energy is conventionally measured in Calories as...Ch. 8 - A loaded ore car has a mass of 950 kg and rolls on...Ch. 8 - Prob. 42APCh. 8 - Prob. 43APCh. 8 - Prob. 44APCh. 8 - Prob. 45APCh. 8 - Review. As shown in Figure P8.26, a light string...Ch. 8 - Prob. 47APCh. 8 - Why is the following situation impossible? A...Ch. 8 - Prob. 49APCh. 8 - Prob. 50APCh. 8 - Jonathan is riding a bicycle and encounters a hill...Ch. 8 - Jonathan is riding a bicycle and encounters a hill...Ch. 8 - Consider the blockspringsurface system in part (B)...Ch. 8 - As it plows a parking lot, a snowplow pushes an...Ch. 8 - Prob. 55APCh. 8 - Consider the popgun in Example 8.3. Suppose the...Ch. 8 - As the driver steps on the gas pedal, a car of...Ch. 8 - Prob. 58APCh. 8 - A horizontal spring attached to a wall has a force...Ch. 8 - Prob. 60APCh. 8 - Prob. 61APCh. 8 - Prob. 62APCh. 8 - Prob. 63APCh. 8 - Prob. 64APCh. 8 - A block of mass 0.500 kg is pushed against a...Ch. 8 - Prob. 66APCh. 8 - Prob. 67APCh. 8 - A pendulum, comprising a light string of length L...Ch. 8 - Prob. 69APCh. 8 - Review. Why is the following situation impossible?...Ch. 8 - Prob. 71APCh. 8 - Prob. 72APCh. 8 - Prob. 73APCh. 8 - Prob. 74APCh. 8 - Prob. 75APCh. 8 - Prob. 76APCh. 8 - Prob. 77APCh. 8 - Prob. 78APCh. 8 - Prob. 79CPCh. 8 - Starting from rest, a 64.0-kg person bungee jumps...Ch. 8 - Prob. 81CPCh. 8 - Prob. 82CPCh. 8 - Prob. 83CPCh. 8 - A uniform chain of length 8.00 m initially lies...Ch. 8 - Prob. 85CP
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