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the projectile motion. Circular motion is a familiar class of motion that has a special significance in daily-life situations. We shall discuss unifor m circular motion in some detail. The equations developed in this chapter for motion in a plane can be easily extended to the case of three dimensions. 4.2 SCALARS AND VECTORS In physics, we can ...
- 5.1 INTRODUCTION
- 5.5 NEWTON’S SECOND LAW OF MOTION
- Momentum
- Impulse
- 5.6 NEWTON’S THIRD LAW OF MOTION
- 5.7 CONSERVATION OF MOMENTUM
- 5.9 COMMON FORCES IN MECHANICS
- 5.11 SOLVING PROBLEMS IN MECHANICS
In the preceding Chapter, our concern was to describe the motion of a particle in space quantitatively. We saw that uniform motion needs the concept of velocity alone whereas non-uniform motion requires the concept of acceleration in addition. So far, we have not asked the question as to what governs the motion of bodies. In this chapter, we turn ...
The first law refers to the simple case when the net external force on a body is zero. The second law of motion refers to the general situation when there is a net external force acting on the body. It relates the net external force to the acceleration of the body.
Momentum of a body is defined to be the product of its mass m and velocity v, and is denoted by p: = m v (5.1) Momentum is clearly a vector quantity. The following common experiences indicate the importance of this quantity for considering the effect of force on motion. Suppose a light-weight vehicle (say a small car) and a heavy weight vehicle (s...
We sometimes encounter examples where a large force acts for a very short duration producing a finite change in momentum of the body. For example, when a ball hits a wall and bounces back, the force on the ball by the wall acts for a very short time when the two are in contact, yet the force is large enough to reverse the momentum of the ball. Ofte...
The second law relates the external force on a body to its acceleration. What is the origin of the external force on the body ? What agency provides the external force ? The simple answer in Newtonian mechanics is that the external force on a body always arises due to some other body. Consider a pair of bodies A and B. B gives rise to an externa...
The second and third laws of motion lead to an important consequence: the law of conservation of momentum. Take a familiar example. A bullet is fired from a gun. If the force on the bullet by the gun is F, the force on the gun by the bullet is –F, according to the third law. The two forces act for a common interval of time ∆t. According to the s...
In mechanics, we encounter several kinds of forces. The gravitational force is, of course, pervasive. Every object on the earth experiences the force of gravity due to the earth. Gravity also governs the motion of celestial bodies. The gravitational force can act at a distance without the need of any intervening medium. All the other forces commo...
The three laws of motion that you have learnt in this chapter are the foundation of mechanics. You should now be able to handle a large variety of problems in mechanics. A typical problem in mechanics usually does not merely involve a single body under the action of given forces. More often, we will need to consider an assembly of different bodies...
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According to motion definition, it is the change of position of an object with respect to time. Understand motion definition, types of motion along with examples, and real-life applications at BYJU'S.
- 3 min
- State motion definitionAs per motion definition, it is the change of position of an object with respect to time.
- What are the types of motion?The following are the types of motion: Linear Motion Rotary Motion Oscillatory Motion
- What are the types of linear motion?Types of linear motion are: Rectilinear Motion Curvilinear Motion
- Give some examples of motionExamples of motion are: Walking Running The flow of air in and out of our lungs. The automobiles that carry passengers from the place of pick up to...
In one-dimensional motion, there are only two directions (backward and forward, upward and downward) in which an object can move, and these two directions can easily be specified by + and – signs. For example, displacement of the car in moving from O to P is : ∆x = x –. 2. = (+360 m) – 0 m = +360 m.
Jan 19, 2024 · Law 1. A body will remain at rest or continue to move with uniform velocity unless an external force is applied to it. First law of motion is also referred to as the ‘Law of inertia’. It defines inertia, force and inertial frame of reference.
6 days ago · Motion in a Plane Class 11 Notes CBSE Physics Chapter 4 (Free PDF Download) Revision Notes. Class 11. Physics. Chapter 4 Motion In A Plane. Last updated date: 22nd May 2024. •. Total views: 705.9k. •. Views today: 13.05k. Download PDF. Study Materials. Sample Papers. Syllabus. Textbook Solutions.
Defining Motion. Our study of physics opens with kinematics —the study of motion without considering its causes. Objects are in motion everywhere you look. Everything from a tennis game to a space-probe flyby of the planet Neptune involves motion. When you are resting, your heart moves blood through your veins.
