What is escape velocity derive an expression for it

Asked by admin @ 16/08/2021 in Physics viewed by 299 People

What is escape velocity? obtain an expression for it ( complete dedivation)

Answered by admin @ 16/08/2021

DEFINITION: the minimum speed with which a body must be projected in order that it will escape from the Earth gravitational field is called as escape velocity

DERIVATION:
consider a body of mass m on the surface of the earth whose mass and radius are respectively represented by M and R

and earth is F= $\frac{GMm}{ {R}^{2} }$

gravitational potential energy

( G.P.E) =- $\frac{GMm}{R}$ .

( w= F.S = $\frac{GMm}{ {R}^{2} } R$

in order to projector body into the space overcoming the earth's gravitational field it must be given a kinetic energy which is equal to its potential energy

therefore:
kinetic energy is equal to potential energy

$[I hope help you}$

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Asked by maham237 @ 13/01/2021 in Physics viewed by 1207 persons

Mind map for light reflection and refraction class 10

Asked by admin @ 23/08/2021 in Physics viewed by 1150 persons

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

Asked by maham237 @ 10/01/2021 in Physics viewed by 1102 persons

A thief runs at a speed of 10m s

Asked by admin @ 23/08/2021 in Physics viewed by 1098 persons

A 5.8 x 10 4 watt elevator motor can lift

Asked by maham237 @ 20/06/2021 in Physics viewed by 1083 persons

What is escape velocity derive an expression for it

Similar Questions

Define escape velocity and derive an expression for it

Define terminal velocity derive an expression for it

Define orbital velocity and derive an expression for it

What is terminal velocity derive an expression for it

Define drift velocity and derive an expression for it

What is escape velocity obtain an expression for it

Derive an expression for orbital velocity of a satellite

Express escape velocity in terms of g and r

Derive an expression for joules law of heating

Derive an expression for coulomb's law in vector form

Derive expression for capacitance of a parallel plate capacitor

State the universal law of gravitation derive its expression

Define radius of gyration derive an expression for it

State stokes law and derive an expression for it

Derive the mathematical expression for first law of thermodynamics

Most viewed questions in Physics

Jeevandeep health and physical education std 10 answers pdf

Hc verma physics class 9 solutions of describing motion

How to leave nightmare land answer key

Base area and stability of some objects with different shapes

Which of the following statements about safe lifting are correct

Porous water-absorbing mass of fibers

Absorption of water by filter paper is due to

A composite wire of uniform diameter 3mm

At a distance l 400m from the traffic light

A rocket of mass m is launched straight up with thrust f⃗ thrust.

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Mind map for light reflection and refraction class 10

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

A thief runs at a speed of 10m s

A 5.8 x 10 4 watt elevator motor can lift