### One-dimensional Collision

One-dimensional Collision When the children play marbles, then if one marble collides with another marble and after the collision if the marbles move in a......

### Definition: Gravity, Gravitation and Gravitational Field

Gravity: The force of attraction between the earth and any other body is called gravity. It is the force that attracts a body toward the......

### Inelastic Collision

Inelastic collision An inelastic collision is a collision in which there is a loss of kinetic energy. While momentum of the system is conserved in......

### Elastic Collision

Elastic Collision When collision occurs between atoms or molecules and electrons, protons, neutrons etc. then total kinetic energy remains constant. This type of collision may......

### Application of Centripetal and Centrifugal Force

Application of Centripetal and Centrifugal Force: Motion of a cyclist along a curved path: During turning the cyclist automatically inclines toward inside i.e., towards the......

### Collision Definition

Collision Sudden and large change of motion of a body by force acting for a very short duration is called collision. When two objects hit......

### Centrifugal Force

Centrifugal force We know that for every body moving in a circular path a force act towards the centre of the circle i.e., a centripetal......

### Centrifugal Reaction

Centrifugal reaction: Centripetal force acting on the body rotating in a circular path is applied from outside. The body which applies this outside force, according......

### Centripetal Force

Centripetal force According to Newton’s first law due to inertia of motion a moving body always intends to move in a straight line with uniform......

### Conservation of Angular Momentum

Conservation of angular momentum From Newton’s first law for angular motion we know that change of angular velocity i.e., angular momentum occurs due to the......

### Experiment: Determination of Moment of Inertia of a Fly Wheel

Experiment: Determination of moment of Inertia of a Fly Wheel Theory: Suppose, angular velocity of a wheel is ω and its radius r. Then lineal......

### Angular Acceleration

Angular acceleration Angular acceleration is the rate of change of angular Velocity with respect to time. In many cases angular velocity of a rotating particle......

### Torque or Moment of a Force

Torque or Moment of a Force A rigid body can rotate about a point. For example, a photograph can rotate about the point of contact......

### Angular Displacement

Angular displacement Suppose, on any plane surface like the page of this book, a particle is rotating in circular orbit around a fixed point O.......

### Angular Velocity

Angular velocity Angular velocity, also called rotational velocity, is a quantitative expression of the amount of rotation that a spinning object undergoes per unit time.......