When a body coming from infinity falls o...

When a body coming from infinity falls on the earth's surface, give its velocity .

Text Solution

Verified by Experts

The correct Answer is:

`sqrt(2gR)`

Topper's Solved these Questions

NEWTONIAN GRAVITATION AND PLANETARY MOTION
CHHAYA PUBLICATION|Exercise EXERCISE (Short Answer Type Questions-I)|12 Videos
NEWTONIAN GRAVITATION AND PLANETARY MOTION
CHHAYA PUBLICATION|Exercise EXERCISE (Short Answer Type Questions-II)|4 Videos
NEWTONIAN GRAVITATION AND PLANETARY MOTION
CHHAYA PUBLICATION|Exercise EXERCISE (Multiple choice Questions)|55 Videos
NEWTON'S LAWS OF MOTION
CHHAYA PUBLICATION|Exercise CBSE SCANNER|24 Videos
ONE - DIMENSIONAL MOTION
CHHAYA PUBLICATION|Exercise CBSE SCANNER|19 Videos

Similar Questions

Explore conceptually related problems

The ratio of the mass of the moon to that of the earth is 1:81. If the radius of the moon is assumed to be one-fourth of that of the earth , then what is the acceleration due to gravity on the surface of the moon in terms of that on the earth's surface ? Hence, find the escape velocity from the surface of the moon in terms of that from the earth's surface.

When light of wavelength 4041 Å falls on a metal surface, the maximum velocity of the emitted photoelectrons becomes twice the maximum velocity when another light of wavelength 5893 Å falls on the same surface. What is the photoelectric work function of that metal?

A body of mass 20 kg falls from a height of 20 m on the earth's surface. If the resistance offered by the surface is 10000 N , how far will the body penetrate? (g = 10 m cdot s^(-2) )

At what height above the surface of the earth will the acceleration due to gravity be half of its value on the earth's surface ? Radius of the earth =6400 km.

Show that the velocity of a body released at distance r from the centre of the earth, when it strikes the surface of the earth is given by , v=sqrt(2GM(1/R-1/r)) where R and M are the radius and mass of the earth. Also show that the velocity with which meteorites strike the earth's surface is equal to escape velocity.

CHHAYA PUBLICATION-NEWTONIAN GRAVITATION AND PLANETARY MOTION-EXERCISE (Very Short Answer Type Questions)

From the surface of the moon, give the value of the escape velocity ...
Text Solution
|
What is the relation between orbital and escape velocity ?
Text Solution
|
When a body coming from infinity falls on the earth's surface, give it...
Text Solution
|
The orbital speed of a planet around the sun depends on the mass of t...
Text Solution
|
A comet orbits the sun in a highly elliptical orbit. Does the comet ha...
Text Solution
|
The time period of revolution of an artificial satellite in an orbit...
Text Solution
|
An artificial satellite appears to be stationary with respect to an ob...
Text Solution
|
What is the name of the orbit where an artificial satellite appears t...
Text Solution
|
What time will a polar satellite take to revolve around the earth once...
Text Solution
|
In which plane of the earth, does the orbit of a geostationary satell...
Text Solution
|
Write down one most important application of geostationary satellite.
Text Solution
|
Assuming that the earth revolves around the sun in a circular orbit, ...
Text Solution
|
If the distance between the sun and the earth were half the present va...
Text Solution
|
If two satellite revolve in two different circular orbits, the orbital...
Text Solution
|
The orbital speed of a satellite of the earth does not depend on the m...
Text Solution
|
Two satellite A and B are revolving around the earth at the same heigh...
Text Solution
|
If the orbital speed of an artificial satellite revolving very close ...
Text Solution
|
A geostationary satellite orbits the earth once in 24 h in the …….of t...
Text Solution
|
If the radius of the earth is R, what will be the distance of a geosta...
Text Solution
|
A person inside an artificial satellite revolving around the earth fee...
Text Solution
|