교과서 질문
A single force with x-component Fₓ acts on a 2.0 kg object as it moves along the x-axis. A graph of Fₓ versus t is shown in FIGURE P5.32. Draw an acceleration graph aₓ versus t) for this object.
2003
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Ch 05: Force and Motion
Knight Calc5th EditionPhysics for Scientists and EngineersISBN: 9780137344796
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Table of contents
- Ch 01: Concepts of Motion35
- Ch 02: Kinematics in One Dimension75
- Ch 03: Vectors and Coordinate Systems58
- Ch 04: Kinematics in Two Dimensions60
- Ch 05: Force and Motion23
- Ch 06: Dynamics I: Motion Along a Line53
- Ch 07: Newton's Third Law27
- Ch 08: Dynamics II: Motion in a Plane52
- Ch 09: Work and Kinetic Energy56
- Ch 10: Interactions and Potential Energy50
- Ch 11: Impulse and Momentum56
- Ch 12: Rotation of a Rigid Body71
- Ch 13: Newton's Theory of Gravity52
- Ch 14: Fluids and Elasticity44
- Ch 15: Oscillations55
- Ch 16: Traveling Waves37
- Ch 17: Superposition39
- Ch 18: A Macroscopic Description of Matter53
- Ch 19: Work, Heat, and the First Law of Thermodynamics60
- Ch 20: The Micro/Macro Connection53
- Ch 21: Heat Engines and Refrigerators34
- Ch 22: Electric Charges and Forces40
- Ch 23: The Electric Field39
- Ch 24: Gauss' Law32
- Ch 25: The Electric Potential63
- Ch 26: Potential and Field57
- Ch 27: Current and Resistance42
- Ch 28: Fundamentals of Circuits39
- Ch 29: The Magnetic Field47
- Ch 30: Electromagnetic Induction60
- Ch 31: Electromagnetic Fields and Waves32
- Ch 32: AC Circuits63
- Ch 33: Wave Optics32
- Ch 34: Ray Optics57
- Ch 35: Optical Instruments30
- Ch 36: Special Relativity38
- Ch 37: The Foundations of Modern Physics25
- Ch 38: Quantization49
- Ch 39: Wave Functions and Uncertainty31
- Ch 40: One-Dimensional Quantum Mechanics35
- Ch 41: Atomic Physics18
- Ch 42: Nuclear Physics27
5장, 문제 25
Exercises 23, 24, 25, 26, and 27 describe a situation. For each, identify all forces acting on the object and draw a free-body diagram of the object. Your physics textbook is sliding across the table.
검증된 단계별 안내1
Identify the object in question: The object is the physics textbook sliding across the table.
List all forces acting on the object: (1) The gravitational force (weight) acting downward, represented as , (2) The normal force exerted by the table acting upward, represented as , (3) The kinetic friction force opposing the motion of the textbook, represented as .
Draw a free-body diagram: Represent the textbook as a box. Draw an arrow pointing downward from the center of the box to represent the gravitational force . Draw an arrow pointing upward from the center of the box to represent the normal force . Draw an arrow pointing to the left (opposite the direction of motion) to represent the kinetic friction force .
Explain the balance of forces: Since the textbook is sliding across the table, the normal force balances the gravitational force vertically. Horizontally, the kinetic friction force opposes the motion of the textbook.
Conclude the analysis: The forces acting on the textbook are the gravitational force, the normal force, and the kinetic friction force. The free-body diagram visually represents these forces, and their interactions explain the motion of the textbook across the table.
비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
2m도움이 되었나요?
주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Free-Body Diagram
A free-body diagram is a graphical representation used to visualize the forces acting on an object. It typically includes the object in question, represented as a dot or a box, and arrows indicating the direction and magnitude of each force. This tool helps in analyzing the net force and understanding the motion of the object based on Newton's laws.
추천 영상:
가이드 코스
08:42
Free-Body Diagrams
Types of Forces
Forces can be categorized into several types, including gravitational, normal, frictional, and applied forces. In the context of a sliding object, gravitational force pulls it downward, while the normal force acts perpendicular to the surface, countering gravity. Frictional force opposes the motion, and any applied force would be the force causing the object to slide.
추천 영상:
가이드 코스
06:18Types of Forces
Newton's Laws of Motion
Newton's Laws of Motion describe the relationship between the motion of an object and the forces acting on it. The first law states that an object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force. The second law quantifies this relationship, stating that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
추천 영상:
가이드 코스
04:46Newton's 1st Law
관련 실천
교과서 질문
A single force with x-component Fₓ acts on a 500 g object as it moves along the x-axis. The object's acceleration graph aₓ versus t) is shown in FIGURE P5.30. Draw a graph of Fₓ versus t.
1785
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교과서 질문
Newton's First Law Exercises 17, 18, and 19 show two of the three forces acting on an object in equilibrium. Redraw the diagram, showing all three forces. Label the third force F3.
975
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교과서 질문
Exercises 23, 24, 25, 26, and 27 describe a situation. For each, identify all forces acting on the object and draw a free-body diagram of the object. An ice hockey puck glides across frictionless ice.
1515
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교과서 질문
A constant force is applied to an object, causing the object to accelerate at 10 m/s². What will the acceleration be if the force is halved?
1587
views
교과서 질문
Newton's First Law Exercises 17, 18, and 19 show two of the three forces acting on an object in equilibrium. Redraw the diagram, showing all three forces. Label the third force F3.
1799
views