7th Edition

ISBN: 9780321625915

Author: Douglas C. Giancoli

Publisher: PEARSON

Concept explainers

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:

Videos

Textbook Question

Chapter 4, Problem 5P

Superman must stop a 120-km/h train in 150 m to keep it from hitting a stalled car on the tracks. If the train's mass is 3.6 x 10⁵ kg, how much force must he exert? Compare to the weight of the train (give as %). How much force does the train exert on Superman?

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 4, Problem 4P

Chapter 4, Problem 6P

Students have asked these similar questions

generated worksheet

While cruising down University Boulevard you are stopped by a cop who states that you ran a red traffic light. Because you don't want to pay the stiff fine, you are attempting a physics defense. You claim that due to the relativistic Doppler effect, the red color of the light λ=616 nm appeared green '=531 nm to you. The cop makes a quick calculation of his own and rejects your defense. How fast, in terms of your speed u divided by the speed of light in vacuum c, would you have to drive to justify your claim? Note that the speed u is taken to be a positive quantity. U 4.0 C

220 V is supplied to 800 primary turns of an autotransformer. What will the outputvoltage be across 200 secondary turns? 2. A filament transformer has a turns ratio of 1:20. What current must be supplied to theprimary windings if 5 A is required by the filament? 3. The filament transformer in the previous question is supplied with 150 V to theprimary side. What is the secondary voltage? 4. 440 V is supplied to 1000 primary turns of an autotransformer. If the desired outputvoltage is 100 V how many secondary turns must be tapped?

Chapter 4 Solutions

Physics

Ch. 4 - A 150-kg football player collides head-on with a...Ch. 4 - A line by the poet T. S. Eliot (from Murder in the...Ch. 4 - Why does a child in a wagon seem to fall backward...Ch. 4 - A box rests on the (frictionless) bed of a truck....Ch. 4 - Prob. 3Q Ch. 4 - If the acceleration of an object is zero, are no...Ch. 4 - Prob. 5Q Ch. 4 - Prob. 6Q Ch. 4 - Prob. 7Q Ch. 4 - (a) Why do you push down harder on the pedals of a...

Ch. 4 - A stone hangs by a fine thread from the ceiling,...Ch. 4 - Prob. 10Q Ch. 4 - Prob. 11Q Ch. 4 - Prob. 12Q Ch. 4 - Prob. 13Q Ch. 4 - Prob. 14Q Ch. 4 - Prob. 15Q Ch. 4 - Prob. 16Q Ch. 4 - Prob. 17Q Ch. 4 - Prob. 18Q Ch. 4 - Prob. 19Q Ch. 4 - A block is given a brief push so that it slides up...Ch. 4 - Prob. 21Q Ch. 4 - Prob. 22Q Ch. 4 - A truck is traveling horizontally to the right...Ch. 4 - You are trying to push your stalled car. Although...Ch. 4 - Matt, in the foreground of Fig. 4-39, is able to...Ch. 4 - A bear sling, Fig. 4-40, is used in some national...Ch. 4 - What causes the boat in Fig. 4-41 to move forward?...Ch. 4 - A person stands on a scale in an elevator. His...Ch. 4 - When a skier skis down a hill, the normal force...Ch. 4 - A golf ball is hit with a golf club. While the...Ch. 4 - Suppose an object is accelerated by a force of 100...Ch. 4 - You are pushing a heavy box across a rough floor....Ch. 4 - Prob. 11MCQ Ch. 4 - The normal force on an extreme skier descending a...Ch. 4 - To pull an old stump out of the ground, you and a...Ch. 4 - What force is needed to accelerate a sled (mass =...Ch. 4 - Prob. 2P Ch. 4 - How much tension must a rope withstand if it is...Ch. 4 - According to a simplified model of a mammalian...Ch. 4 - Superman must stop a 120-km/h train in 150 m to...Ch. 4 - A person has a reasonable chance of surviving an...Ch. 4 - What average force is required to stop a 950-kg...Ch. 4 - Prob. 8P Ch. 4 - Prob. 9P Ch. 4 - Prob. 10P Ch. 4 - Prob. 11P Ch. 4 - Prob. 12P Ch. 4 - Prob. 13P Ch. 4 - Prob. 14P Ch. 4 - Prob. 15P Ch. 4 - Prob. 16P Ch. 4 - Prob. 17P Ch. 4 - Prob. 18P Ch. 4 - Prob. 19P Ch. 4 - A box weighing 77.0 N rests on a table. A rope...Ch. 4 - Figure 4-46 Problem 21. 21. (I) Draw the free-body...Ch. 4 - Prob. 22P Ch. 4 - Arlene is to walk across a “high wire" strung...Ch. 4 - A window washer pulls herself upward using the...Ch. 4 - One 3.2-kg paint bucket is hanging by a massless...Ch. 4 - Prob. 26P Ch. 4 - A train locomotive is pulling two cars of the same...Ch. 4 - Prob. 28P Ch. 4 - At the instant a race began, a 65-kg sprinter...Ch. 4 - A 27-kg chandelier hangs from a ceiling on a...Ch. 4 - Prob. 31P Ch. 4 - Figure 4-53 [shows a block (mass mA) on a smooth...Ch. 4 - Prob. 33P Ch. 4 - Prob. 34P Ch. 4 - 35. (Ill) Suppose the pulley in Fig. 4-55 is...Ch. 4 - Prob. 36P Ch. 4 - A force of 35.0 N is required to start a 6.0-kg...Ch. 4 - Prob. 38P Ch. 4 - Prob. 39P Ch. 4 - Prob. 40P Ch. 4 - Prob. 41P Ch. 4 - A box is given a push so that it slides across the...Ch. 4 - Prob. 43P Ch. 4 - Prob. 44P Ch. 4 - Prob. 45P Ch. 4 - 46. (II) For the system of Fig. 4-32 (Example...Ch. 4 - Prob. 47P Ch. 4 - Prob. 48P Ch. 4 - Prob. 49P Ch. 4 - A person pushes a 14.0-kg lawn mower at constant...Ch. 4 - Prob. 51P Ch. 4 - (a) A box sits at rest on a rough 33° inclined...Ch. 4 - Prob. 53P Ch. 4 - Prob. 54P Ch. 4 - Prob. 55P Ch. 4 - A 25.0-kg box is released on a 27° incline and...Ch. 4 - Prob. 57P Ch. 4 - Prob. 58P Ch. 4 - The crate shown in Fig. 4-60 lies on a plane...Ch. 4 - A crate is given an initial speed of 3.0 m/s up...Ch. 4 - Prob. 61P Ch. 4 - Prob. 62P Ch. 4 - The coefficient of kinetic friction for a 22-kg...Ch. 4 - On an icy day, you worry about parking your car in...Ch. 4 - Two masses mA= 2.0 kg and mB= 5.0 kg are on...Ch. 4 - Prob. 66P Ch. 4 - Prob. 67P Ch. 4 - A 2.0-kg purse is dropped from the top of the...Ch. 4 - Prob. 69GP Ch. 4 - 70. A 75.0-kg person stands on a scale in an...Ch. 4 - Prob. 71GP Ch. 4 - Prob. 72GP Ch. 4 - Prob. 73GP Ch. 4 - Prob. 74GP Ch. 4 - Prob. 75GP Ch. 4 - (a) What minimum force F is needed to lift the...Ch. 4 - Prob. 77GP Ch. 4 - A jet aircraft is accelerating at 3.8 m/s2 as it...Ch. 4 - Prob. 79GP Ch. 4 - Prob. 80GP Ch. 4 - Prob. 81GP Ch. 4 - Prob. 82GP Ch. 4 - Prob. 83GP Ch. 4 - Prob. 84GP Ch. 4 - Prob. 85GP Ch. 4 - Prob. 86GP Ch. 4 - Prob. 87GP Ch. 4 - Prob. 88GP Ch. 4 - Prob. 89GP Ch. 4 - Prob. 90GP Ch. 4 - A 72-kg water skier is being accelerated by a ski...Ch. 4 - Prob. 92GP Ch. 4 - Prob. 93GP Ch. 4 - Prob. 94GP Ch. 4 - Prob. 95GP Ch. 4 - Prob. 96GP Ch. 4 - Prob. 97GP

Additional Science Textbook Solutions

Find more solutions based on key concepts

47. 30 g of copper pellets are removed from a 300°C oven and immediately dropped into 100 mL of water at 20°C i...

College Physics: A Strategic Approach (3rd Edition)

33. Consider the reaction: The tabulated data were collected for the concentration of C4H8 as a function...

Chemistry: Structure and Properties (2nd Edition)

7. Block B in FIGURE EX7.7 rests on a surface for which the static and kinetic coefficients of friction are 0.6...

Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)

Two parents plan to have three children. What is the probability that the children will be two girls and one bo...

Genetic Analysis: An Integrated Approach (3rd Edition)

The data were obtained from a use-dilution test comparing four disinfectants against Salmonella choleraesuis. G...

Microbiology: An Introduction

Lewis structure for lonic compounds 35. Is each compound best represented by an ionic or a covalent Lewis stru...

Introductory Chemistry (6th 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.

Superman must stop a 120-km/h train in 150 m to keep it from hitting a stalled car on the tracks. If the train's mass is 3.6 x 10 5 kg, how much force must he exert? Compare to the weight of the train (give as %). How much force does the train exert on Superman?

Concept explainers

Videos

Want to see the full answer?

Chapter 4 Solutions

Additional Science Textbook Solutions