4th Edition

ISBN: 9780135245033

Author: Knight

Publisher: PEARSON

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If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!

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Textbook Question

Chapter 5, Problem 46EAP

Problems 42 through 52 describe a situation. For each, draw a motion diagram, a force-identification diagram, and a free-body diagram.

42. An elevator, suspended by a single cable, has just left the tenth floor and is speeding up as it descends towards the ground floor.

43. A rocket is being launched straight up. Air resistance is not negligible.

44. A Styrofoam ball has just been shot straight up. Air resistance is not negligible.

45. You are a rock climber going upward at a steady pace on a vertical wall.

46. You’ve slammed on the brakes an your car is skidding to a stop while going down a 20° hill.

47. You’ve just kicked a rock on the sidewalk and it is now sliding along the concrete.

48. You’ve jumped down from a platform. Your feet are touching the ground and your kees are flexing as you stop.

49. You are bungee jumping from a high bridge. You are moving downward while the bungee cord is stretching.

50. Your friend went for a loop-the-loop ride at the amusement park. Her car is upside down at the top of the loop.

51. A spring-loaded gun shoots a plastic ball. The trigger has just been pulled and the bull is starting to move down the barrel. The barrel is horizontal.

52. A person on a bridge throws a rock straight down toward the water. The rock has just been released.

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Chapter 5, Problem 45EAP

Chapter 5, Problem 47EAP

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Chapter 5 Solutions

MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB

Ch. 5 - An elevator suspended by a cable is descending at...Ch. 5 - A compressed spring is pushing a block across a...Ch. 5 - A brick is falling from the roof of a three-story...Ch. 5 - In FIGURE Q5.4 block B is falling and dragging...Ch. 5 - You toss a ball straight up in the air....Ch. 5 - A constant force applied to A causes A to...Ch. 5 - An object experiencing a constant force...Ch. 5 - An object experiencing a constant force...Ch. 5 - If an object is at rest, can you conclude that...Ch. 5 - If a force is exerted on an object, is it possible...

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