Describe escape velocity, Physics

Assignment Help:

Q. Escape Velocity

An object will conquer the force of gravity when its kinetic energy in the direction away from earth exceeds its potential energy. We find the smallest kinetic energy required by solving K.E. = P.E..

Then

mv2/2=mgr,

Where m is the mass of object and v is its velocity and g is the acceleration due to gravity and r is the radius of the earth.

Solving for v

v2= 2gr

v =√2gr

Taking the earth's radius as 3960 miles as well as the acceleration due to gravity as 32 feet per second2 we have

V=√232/5280 × 3960

Which reduces to 6.9 miles per second


Related Discussions:- Describe escape velocity

Theory of gas turbine propulsion, This assignment is intended to introduce ...

This assignment is intended to introduce you to the theory of gas turbine propulsion. The theory of the most simple gas turbine aircraft engine, the ideal turbojet, is detailed in

Resistance in series, Resistance in Series: In such a combination the r...

Resistance in Series: In such a combination the resistors give a single path to the passage of current and similar current passes by each of the resistors.

How does the elevation affect the boiling point of water, How does the elev...

How does the elevation and air pressure affect the boiling point of water? The only factor that explains the boiling point of water at any altitude is the barometric pressure (

Explain the acoustic cavitation, Explain the acoustic cavitation. Acous...

Explain the acoustic cavitation. Acoustic Cavitation: Usually, cavitation is the phenomenon where largely and small empty cavities are generated into fluids that expand to l

Define bar magnet, A bar magnet having of two equal and opposite magnetic p...

A bar magnet having of two equal and opposite magnetic pole separated by a small distance. Poles are not precisely at the last. The smallest distance among two poles is known as ef

Gravitety, why fall an apple from a tree

why fall an apple from a tree

Explain critical mass, Critical Mass: The minimum mass of Uranium requi...

Critical Mass: The minimum mass of Uranium required for smooth fission chain reaction is called as critical mass.

9th, what is dynamics

what is dynamics

Determine the acceleration of particle, Regard as an electron and a proton ...

Regard as an electron and a proton at an instant in time to be at a separation of 5 cm from each other. Presume the pair to be totally isolated from its surroundings in the vacuum

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd