हिंदी

Mahendra and Virat are sitting at a distance of 1 m from each other.Their masses are 75 kg and 80 kg respectively. What is the gravitational force between them? (G = 6.67 × 10-11 Nm2/kg2)

Advertisements
Advertisements

प्रश्न

Mahendra and Virat are sitting at a distance of 1m from each other. Their masses are 75 kg and 80 kg respectively. What is the gravitational force between them? (G = 6.67 × 10−11 Nm2/kg2)

संख्यात्मक
Advertisements

उत्तर

Given:

Distance (r) = 1 m, mass (m1) = 75 kg, mass (m2) = 80 kg, gravitational constant (G) = 6.67 × 10-11 Nm2/kg

To find:

Gravitational force (F)

F = `("Gm"_1"m"_2)/"r"^2`   ...[From formula]

F = `(6.67 xx 10^-11 xx 75 xx 80)/1^2`

F = 40020 × 10−11
F = 4.002 × 104 × 10−11

∴ F = 4.002 × 10-7 N

The gravitational force between Mahendra and Virat is 4.002 × 10-7 N.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Gravitation - Solve the following Questions [पृष्ठ २५]

APPEARS IN

एससीईआरटी महाराष्ट्र Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
अध्याय 1 Gravitation
Solve the following Questions | Q 5. | पृष्ठ २५

संबंधित प्रश्न

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?


A person brings a mass of 1 kg from infinity to a point A. Initially the mass was at rest but it moves at a speed of 2 m s −1 as it reaches A. The work done by the person on the mass is −3 J. The potential at A is


Consider a planet moving in an elliptical orbit round the sun. The work done on the planet by the gravitational force of the sun
(a) is zero in any small part of the orbit
(b) is zero in some parts of the orbit
(c) is zero in one complete revolution
(d) is zero in no part of the motion.


Two spherical balls of mass 10 kg each are placed 10 cm apart. Find the gravitational force of attraction between them.


Three uniform spheres each having a mass M and radius a are kept in such a way that each touches the other two. Find the magnitude of the gravitational force on any of the spheres due to the other two.


The force of attraction between any two material objects is called __________.


Is the law of gravitation applicable in case of the sun and the moon?


You can change the direction in which an object is moving by___________.


State Newton's law of gravitation. What is the difference between:
Gravity and gravitation


What do you mean by a gravitational constant?


Solve the following problem.

Find the gravitational force between the Sun and the Earth.
Given Mass of the Sun = 1.99 × 1030 kg
Mass of the Earth = 5.98 × 1024 kg
The average distance between the Earth and the Sun = 1.5 × 1011 m.


The ______ force is much weaker than other forces in nature.


The gravitational force between a hollow spherical shell (of radius R and uniform density) and a point mass is F. Show the nature of F vs r graph where r is the distance of the point from the centre of the hollow spherical shell of uniform density.


Write the answer of the question with reference to laws of gravitation.

Write the value of the universal gravitational constant.


Two particles of equal mass 'm' go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle with respect to its centre of mass is ______.


If three equal masses m are placed at the three vertices of an equilateral triangle of side 1/m then what force acts on a particle of mass 2m placed at the centroid?


If the mass of one object is doubled and distance remains the same, the gravitational force will ______.


The Superposition Principle states that the net gravitational force on an object 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×