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Mechanics

law of conservation of momentum formula & examples in real life

Guess now! Why the passengers in the bus move forward when the bus stops quickly? What happens when two bodies strike with each other? Why gun recoils back after firing? Do  you want to learn this types of questions then? Let start: What is law of conservation of momentum? law of conservation of momentum states that:”The momentum of an isolated ...

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Difference between stable unstable and neutral equilibrium with examples

Types  of equilibrium in physics There are three states or types  of equilibrium in physics Stable equilibrium Unstable equilibrium Neutral equilibrium Stable equilibrium “A body is said to be in stable equilibrium if after a slight tilt it returns to its previous position.” Consider a book lying on the table.Tilt the book slightly about its one edge by lifting it ...

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difference between centre of mass and centre of gravity with examples

Centre of Mass “Centre of mass of a system is such a point where an applied force causes the system to move without rotation” It is observed that the centre of mass of a system moves as if its entire mass is confined at that point. A force applied at such a point in the body does not produce any ...

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Newton’s third law of motion examples in daily life

Newton’s first law of motion Newton’s second law of motion Newton’s third law of motion Newton’s third law of motion explains the quantitatively that how forces affect motion.But question is that where these forces come from?We noticed during observations that a force on any object always exerted by another object. For examples: A horse pulls a cart ,a person walks ...

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Newton’s second law of motion formula and examples in daily life

Newton’s first law of motion Newton’s second law of motion Newton’s Third law of motion According to newton’s first law of motion “if no net force is acting on a body at rest,then the body remains at rest,or if the body is moving will continue to move.” But! What will happen if  net force is act on a body? Newton ...

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Potential energy formula and types with examples in everyday life

Potential energy definition Potential energy is defined as:“Energy due to position is called potential energy.” Explanation of potential energy When a diver jumps off a high  board into a swimming pool,he hits the water moving pretty fast,with a lot of kinetic energy.Where does that energy come from?The answer is that gravitational force (his weight) does work on the diver as ...

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Gravitational field strength:formula & definition

Gravitation Newton’s law of gravitation Mass of earth What is Gravitational field? “The space around the earth in which earth can exert a force of attraction on other bodies is called gravitational field.”A basic fact of the gravitation is that to particles exerts forces on one another.This is a direct interaction between the two particles and is called action at ...

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Mass of earth and radius

Newton’s law of gravitation Gravitation (force of gravity) Gravitational field strength Derivation of mass of earth Consider a body of mass m on the surface of the earth.Let the mass of the earth be  M and radius of the earth be R,The distance of the body from the center of the earth will also be equal to the radius R ...

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Newton’s law of universal gravitation equation and examples

what is Newton’s universal law of gravitation? Newton’s law of gravitation can be stated as:”Everybody in the universe attracts every other body with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.” Newton’s universal law of gravitation equation Consider two bodies of masses m1 and ...

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Difference between electric potential and electric potential energy

Electric potential: “Electric potential at a point in electric field is the amount of work done to bring the unit positive charge from infinity to that point.” The gravitational potential at point in the gravitational field is the gravitational potential energy of a unit mass placed at that point.In this way ,the electric potential at any point in the electric ...

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