Answer to Question #201883 in Astronomy | Astrophysics for Syed Abdullah

Question

Scientists are developing a new space cannon to shoot objects from the surface of the Earth directly into a low orbit around the Earth. For testing purposes, a projectile is fired with an initial velocity of 2.8 km/s vertically into the sky. Calculate the height that the projectile reaches, ... (a) assuming a constant gravitational deceleration of 9.81 m/s2 . (b) considering the change of the gravitational force with height. Note: Neglect the air resistance for this problem. Use 6.67×10−11 m3kg−1 s −2 for the gravitational constant, 6371 km for the Earth’s radius, and 5.97 × 1024 kg for the Earth’s mass. 

Answer 1

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