मराठी

What is meant by the equation :g=G×mr2where the symbols have their usual meanings.

Advertisements
Advertisements

प्रश्न

What is meant by the equation :
`g= Gxxm/r^2`
where the symbols have their usual meanings.

टीपा लिहा
Advertisements

उत्तर

g= GM/R2
it means acceleration due to gravity is directly proportional to the mass of body and inversely proportional to the square of distance between earth and object.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Laws of Motion - Exercise 2 [पृष्ठ १२६]

APPEARS IN

फ्रँक Physics Part 1 [English] Class 9 ICSE
पाठ 3 Laws of Motion
Exercise 2 | Q 31 | पृष्ठ १२६

संबंधित प्रश्‍न

Write the formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth.


The earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? Why?


State and explain Kepler's laws of planetary motion. Draw diagrams to illustrate these laws.


A semicircular wire has a length L and mass M. A particle of mass m is placed at the centre of the circle. Find the gravitational attraction on the particle due to the wire.


A tunnel is dug along a diameter of the earth. Find the force on a particle of mass m placed in the tunnel at a distance x from the centre.


A thin spherical shell having uniform density is cut in two parts by a plane and kept separated as shown in the following figure. The point A is the centre of the plane section of the first part and B is the centre of the plane section of the second part. Show that the gravitational field at A due to the first part is equal in magnitude to the gravitational field at B due to the second part.


A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find : 
the total time of journey of the ball .


How will the force of gravitation between two objects change if the distance between them is:
Almost zero


Three uniform spheres, each having mass m and radius r, are kept in such a way that each touches the other two. The magnitude of the gravitational force on any sphere due to the other two is


For an object outside a uniform solid sphere, from where is the sphere's mass considered to act?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×