Shaalaa.com | Gravitation (Introduction)
Answer the following question
What are (i) free fall, (ii) acceleration due to gravity (iii) escape velocity (iv) centripetal force ?
Solve the following example
The masses of the earth and moon are 6 × 1024 kg and 7.4 × 1022 kg, respectively. The distance between them is 3.8 × 105 km. Calculate the gravitational force of attraction between the two? Use G = 6.7 × 10–11 N m2 kg–2