Home
Class 9
PHYSICS
The mass of sun is 2xx10^(30) kg and mas...

The mass of sun is `2xx10^(30)` kg and mass of earth is `6xx10^(24)` kg. if the distance between the centers of sun and earth is `1.5xx10^(8)` km, calculate the force of gravitation between them.

Text Solution

AI Generated Solution

The correct Answer is:
To calculate the gravitational force between the Sun and the Earth, we can use Newton's law of universal gravitation, which states: \[ F = G \frac{m_1 m_2}{r^2} \] Where: - \( F \) is the gravitational force, - \( G \) is the gravitational constant, approximately \( 6.674 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \), - \( m_1 \) is the mass of the first object (Sun), - \( m_2 \) is the mass of the second object (Earth), - \( r \) is the distance between the centers of the two objects. ### Step-by-Step Solution: 1. **Identify the values**: - Mass of the Sun, \( m_1 = 2 \times 10^{30} \, \text{kg} \) - Mass of the Earth, \( m_2 = 6 \times 10^{24} \, \text{kg} \) - Distance between the Sun and Earth, \( r = 1.5 \times 10^{8} \, \text{km} = 1.5 \times 10^{11} \, \text{m} \) (since \( 1 \, \text{km} = 1000 \, \text{m} \)) 2. **Substitute the values into the formula**: \[ F = G \frac{m_1 m_2}{r^2} \] \[ F = 6.674 \times 10^{-11} \frac{(2 \times 10^{30})(6 \times 10^{24})}{(1.5 \times 10^{11})^2} \] 3. **Calculate \( r^2 \)**: \[ r^2 = (1.5 \times 10^{11})^2 = 2.25 \times 10^{22} \, \text{m}^2 \] 4. **Calculate the product of the masses**: \[ m_1 m_2 = (2 \times 10^{30})(6 \times 10^{24}) = 12 \times 10^{54} \, \text{kg}^2 \] 5. **Substitute back into the equation**: \[ F = 6.674 \times 10^{-11} \frac{12 \times 10^{54}}{2.25 \times 10^{22}} \] 6. **Calculate the fraction**: \[ \frac{12 \times 10^{54}}{2.25 \times 10^{22}} = \frac{12}{2.25} \times 10^{54 - 22} = 5.3333 \times 10^{32} \] 7. **Final calculation of \( F \)**: \[ F = 6.674 \times 10^{-11} \times 5.3333 \times 10^{32} \] \[ F \approx 3.56 \times 10^{22} \, \text{N} \] ### Final Answer: The gravitational force between the Sun and the Earth is approximately \( 3.56 \times 10^{22} \, \text{N} \).

To calculate the gravitational force between the Sun and the Earth, we can use Newton's law of universal gravitation, which states: \[ F = G \frac{m_1 m_2}{r^2} \] Where: - \( F \) is the gravitational force, - \( G \) is the gravitational constant, approximately \( 6.674 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \), - \( m_1 \) is the mass of the first object (Sun), ...
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    PRADEEP|Exercise Oral testing|16 Videos
  • GRAVITATION

    PRADEEP|Exercise Quiz testing|10 Videos
  • GRAVITATION

    PRADEEP|Exercise Value Based Questions|4 Videos
  • FORCES AND LAWS OF MOTION

    PRADEEP|Exercise MOCK TEST|36 Videos
  • MOTION

    PRADEEP|Exercise Mock test|24 Videos

Similar Questions

Explore conceptually related problems

The mass of Earth is 6xx10^(24) kg and that of moon is 7.4xx10^(22) kg. if the distance between the earth and the moon is 3.84xx10^(5) km, calculate the force exerted by earth on the moon. Given G=6.7xx10^(11) Nm^(2)//kg^(2) .

The mass of the earth is 6 × 10^(24) kg and that of the moon is 7.4 xx 10^(22) kg. If the distance between the earth and the moon is 3.84xx10^(5) km, calculate the force exerted by the earth on the moon. (Take G = 6.7 xx 10^(–11) N m^(2) kg^(-2) )

Mass of mars is 6.42xx10^(29) kg and mass of the sun is 1.99xx10^(30)kg . What is the total mass?

Find the magnitude of the gravitational force between the Sun and the earth. (Mass of the Sun =2xx10^(30) kg, mass of the earth =6xx10^(24)kg and the distance between the centres of the Sun and the earth =1.5xx10^(11)m , (G=6.67xx10^(-11)N.m^(2)//kg^(2))

The masses of the earth and moon are 6 xx 10^(24) kg and 7.4 xx 10^(22) kg , respectively , The distance between them is 3.84 xx 10^(5) km. Calculate the gravitational force of attraction between the two. Use G = 6.7 xx 10^(-11) N.m^(2) kg^(-2)

PRADEEP-GRAVITATION-Problem for practice
  1. The gravitational force between two object is 100N. How should the dis...

    Text Solution

    |

  2. Two electrones each of mass 9.1xx10^(31) kg are at a distance of 10 A....

    Text Solution

    |

  3. The mass of sun is 2xx10^(30) kg and mass of earth is 6xx10^(24) kg. i...

    Text Solution

    |

  4. Two bodies A and B having masses 2 kg and 4 kg respectively are separa...

    Text Solution

    |

  5. If the distance between two masses is increased by a factor of 4, by w...

    Text Solution

    |

  6. The mass of the earth is 6 × 10^(24) kg and that of the moon is 7.4 xx...

    Text Solution

    |

  7. Two satelites of a planet have period 32 days and 256 days. If the rad...

    Text Solution

    |

  8. If the distance of earth form the sun were half the present value, how...

    Text Solution

    |

  9. The distance of planet Jupiter from the Sun is 5.2 times that of the e...

    Text Solution

    |

  10. What is the gravitational acceleration of a spaceship at a distance eq...

    Text Solution

    |

  11. A boy on a cliff 49 m high drops a stone. One second later, he throws ...

    Text Solution

    |

  12. A stone drops from the edge of the roof. It passes a window 2 m high i...

    Text Solution

    |

  13. A particle is dropped from a tower 180 m high. How long does it take t...

    Text Solution

    |

  14. To estimate the height of a bridge over a river, a stone is dropped fr...

    Text Solution

    |

  15. How much would a 70 kg man weigh on moon ?what will be his mass on ear...

    Text Solution

    |

  16. A body weighs 10 kg on the surface of earth. What would be its mass an...

    Text Solution

    |

  17. A force of 2 kg wt. act on a body of mass 4.9 kg calculate its acceler...

    Text Solution

    |

  18. A force of 20 N acts upon a body whose weight is 9.8 N. what is the ma...

    Text Solution

    |

  19. A man weigh 600 N on the earth. What is its mass ? Take g=10m//s^(2). ...

    Text Solution

    |

  20. A car falls off a ledge and drops to the ground in 0.5 s. let g=10 m//...

    Text Solution

    |